+1348 Zander, Ailey and Liz are partners in a babysitting business. Zander and Ailey, the elder two, charge $2 1/4$ times as much as Liz, the youngest. Each of the partners in the business puts $5\%$ of their earnings into the business for expenses. Last week, Ailey worked $8$ hours and earned $\$168.82$ before putting any money into the business. Zander worked $10$ hours and Liz worked $12$ hours. How much money went into the business last week? Express your answer in dollars to the nearest cent.
