The figure shows a parallel-plate capacitor of plate area A = 11.5 cm2 and plate separation 2d = 7.48 mm. The left half of the gap is filled with material of dielectric constant κ1 = 23.5; the top of the right half is filled with material of dielectric constant κ2 = 45.1; the bottom of the right half is filled with material of dielectric constant κ3 = 58.5. What is the capacitance?