How much should we get from the refinance?

I am currently trying to refinance my house. My brother lives with me and he is getting married so he wants his name removed. We also have a 2nd mortgage and will be including that in the refinance. We are having trouble determining how much money he should get from the refinance. When we bought out house it appraised for $107,000 and not it appraises for $132,000 and we owe $92,000. How do I compute how much money he should get from the house?