Save the little kitty :)

I found a kitty on the street. She was wet, dirty, very weak and crying for help. I brought her home thinking i'll give food and when she grows a bit healthy ill leave her with other stray cats in my neighbourhood. I am taking care of her since three days. Today morning i observed that she is not able walk from her front legs. They were crossed. I tried clutching her front legs but she withdrew them in pain. She is literally dragging her body to move. I took her to a vet and they told me they need to xray and other blood tests to rule out fracture or viral/bacterial infections. Since i am a student i can't afford her medical expenses. She is a real fighter. Even though she can't stand or walk she is trying really hard to come out of her shoebox house. I would really appreciate if you guys can help with with the funds. Thank you.