How can i send a value of analog input from arduino to the computer via wifi?
I would try using some kind of WiFi hardware.
Generic question -> generic answer.
You were probably asking "how do I get an analog reading from an arduino to a computer program via wifi?". You can send things to your computer and then there's no entity on your computer to receive it. You only asked half the question with arduino side. You didn't state the other side of the question, what computer program is receiving the data. There is no answer to half a question.