You would like to invest $$24,000$ and have a portfolio expected return of $11\mathrm{.}5$ percent. You are considering two securities$,$ A and B$.$ Stock A has an expected return of $18\mathrm{.}6$ percent and B has an expected return of $7\mathrm{.}4$ percent. Approximately how much should you invest in Stock A if you invest the balance in Stock B$?$