Finding the Fourth Proportional to 76,469.28, 105,527.52 and 42,935.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,469.28 : 105,527.52 = 42,935.28 : x
2. Step 2: Convert to fraction form
   76,469.28/105,527.52 = 42,935.28/x
3. Step 3: Cross multiply
   76,469.28x = 105,527.52 × 42,935.28
4. Step 4: Simplify right side
   76,469.28x = 4,530,853,618.91
5. Step 5: Solve for x
   x = 4,530,853,618.91/76,469.28
6. Step 6: Final answer
   x = 59,250.64