Need help with the second answer in this question.

You have $100,000 to invest in a portfolio containing Stock X and Stock Y. Your goal is to create a portfolio that has an expected return of 13.6%. If Stock X has an expected return of 11.4% and a beta of 1.25, and Stock Y has an expected return of 8.68% and a beta of 0.85. How much money will you invest in stock Y? (Do not round intermediate calculations. Negative answer should be indicated by a minus sign. Omit $ sign in your response.) Investment in Stock Y $ -80880 What is the beta of your portfolio? (Do not round intermediate calculations. Round the final answer to 5 decimal places.) Beta of the portfolio