6-handed.
I raise A9o lp to 45. 4 callers.

A-4-5 (2 clubs).
I cbet 100. 2 callers. one of them is a rock.

turn: 9 (brings another fd)
I bet 350 into 480. both call

river: 3 (three clubs now).
rock donk-shoves 450 into 1100.

have the 3rd villain behind me to act. not much worried about him, is quite loose and has only 300 behind.
do i have the 20-25% equity vs. the rock to call (in addition to the lets say 4 % more percentage i need because of 3rd player?