The phrase "with proud" is correct and can be used in written English.
It is typically used to describe feelings of pride or accomplishment. For example: She accepted her award with proud.
The Irish voted with proud thoughtfulness and independence of spirit.
Ours are civilizations with proud histories and productive workers.
Chuckling with proud delight, she already knows my answer.
Little towns with proud stone-fronted high streets are alive with local businesses.
He's present as his friends compare with proud bravado the blackness of their skin.
With Proud Citizen, I needed someone who would believe in me.
Salesman, with proud glance across street reassured her "That's Tiffany's, the men there are different.
With proud wrath, she denounced the laxity of the productions of Balanchine's ballets that N.Y.C.B. gave in the nineties.
An artist — shown in profile, with proud posture and Vandyke whiskers — sits in the shade of a parasol.
Both formed a little over a decade ago and commemorated their tenth anniversaries with proud, accomplished albums released last year.
From its dark bowels the K.G.B. has produced a star, one who speaks of his former institution with proud dignity.
