Please solve with correct answer and showing all work

Question Four charges, q1 = +4.0q, q2 = -q, q3 = +3.0q, and q4 = -q, are arranged at the corners of a square as shown below. Find the direction and magnitude of the net electrostatic force exerted on the point charge q3. Let q = 3.2 uC and d = 12 cm. 42= - 9 % , z+ 3. 0q 14 2 - 9