$4\mathrm{.}45$ Determine the forces in the members identified by $"x"$ of the truss shown by the method of sections.

$($ the correct answers they are down can you show me the steps of who they got those correct answers, if you got diffrenet answers that means they are wrong$)$

$\sqrt[\phantom{2}]{4\mathrm{.}45}{F}_{CD}=80k(C)$; $F_{DI}=111\mathrm{.}8k(C)$;

$FIN=111\mathrm{.}8k(T)$