Compute the ultimate load that an eccentrically loaded square footing…

Question

Compute the ultimate load that an eccentrically loaded square footing of width $2.1\text{ m}$ with an eccentricity of $0.35\text{ m}$ can take at a depth of $0.5\text{ m}$ in a soil with $\gamma = 18\text{ kN/m}^3$, $c = 9\text{ kN/m}^2$ and $\varphi = 36^\circ$, $N_c = 52$; $N_q = 35$; and $N_\gamma = 42$.