Surgery for Coco

Hello today my dog got hit by a car hes only 2 yrs old the driver took off and didnt even stop i tryed to get his plate to report him but I couldn't get it my kids love Coco he is part of our family the animal hospital already charged me 485 to do ex rays and give him meds both his back legs are broken and need surgery i do not have the funds to cover this and asking help with Gods blessings my dog can have his surgery . otherwise we will have to put him to sleep and we dont wanna do this but we dont wanna let him suffer either.