In a titration experiment $,0\mathrm{.}360$ g of benzoic acid, C$5$H$5$COOH.$($HA$)($MW$=122\mathrm{.}12$ g$/$mol$)$ is dissolved in $380$mL of water. $10\mathrm{.}0$ mL of $0\mathrm{.}0869$M NaOH is added to the solution.If the dissociation constant $($Ka$)$ of benzoic acid is $6\mathrm{.}4$ x$10^-5,$ what is the pH of the final solution?