$\Sigma F_V = 0$
$\frac{4}{5}T + R = 60$
$R = 60 - \frac{4}{5}T$
$\Sigma M_A = 0$
$10T + 4(4)R = 4(60) + 3(3)(40)$
$10T + 16R = 600$
$5T + 8R = 300$
$5T + 8(60 - \frac{4}{5}T) = 300$
$-\frac{7}{5}T + 480 = 300$
$\frac{7}{5}T = 180$
$T = 128.57 \, \text{ kN up to the left}$ answer
$R = 60 - \frac{4}{5}(128.57)$
$R = -42.86 \, \text{ kN}$
$R = 42.86 \, \text{ kN downward}$ answer
$\Sigma F_H = 0$
$P + \frac{3}{5}T = 40$
$P + \frac{3}{5}(128.57) = 40$
$P = -37.14 \, \text{ kN}$
$P = 37.14 \, \text{ kN to the right}$ answer