The phrase "prosperous man" is grammatically correct and can be used in written English.
It refers to a man who is successful and financially well-off. Example: "The town's most prosperous man, John, built a grand estate on the outskirts of the city."
This legend concerns Job, a prosperous man of outstanding piety.
Eventually, it becomes the 11th-largest brewery in the country (hence "the Riches") and makes Kleinman a very prosperous man.
Otto Neumiller, his father, had emmigrated from Germany in 1881, & had built himself up from a homesteader into the most prosperous man in the area.
Being Zuckerman's point man has made a prosperous man of Drasner: he has an equity position in U.S. News & World Report.
Timon of Athens (c. 1605 08), probably an unfinished play and possibly never produced, initially shows us a prosperous man fabled for his generosity.
The older and prosperous man searches for a young, beautiful woman with a good hip-to-waist ratio, shiny eyes and hair, and great skin.
It is a breezy Friday afternoon and the prosperous men are swinging irons on the 18-hole golf course.
(He pauses to observe that he is sounding dangerously like the Monty Python sketch in which prosperous men swap competitive accounts of childhood adversity).
"No Banker Left Behind," ridicules the considerations extended to the prosperous men and women who grabbed everything not nailed down during the last few years.
In the eastern states, each village has a chief, or headman, who, as one of the oldest and most prosperous men in the community, rules by the consent of the people.
Tragedy consisted of the spectacle "highly renowned and prosperous men" brought low by "some great error or frailty" and it has been one long, slow march down the social rankings ever since.
