You are given the following information about an investment account: -- The balance at the beginning of the year is 100. -- The balance after 2 months is 112, and a withdrawal of 16 is made. -- The balance after 3 months is 112, and a deposit of 18 is made. -- The balance after T months is 120, and a deposit of X is made. -- The balance at the end of the year is 137. The time-weighted return is 26.14%, and the dollar-weighted return is 23.32%. Calculate T.