In the image are three point charges, Q1 = 15.4 μC, Q2 = −33.6 μC, and Q3 = 87.3 μC, arranged according to the figure. A fourth point charge is located at point A with a charge of QA = 13.5 μC. The charges form a square with height y of 60.1 cm and width x of 60.1 cm. Calculate the magnitude F of the net force on the charge at point A. F = N