Finding the Fourth Proportional to 28,150.61, 42,235.29 and 9,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,150.61 : 42,235.29 = 9,432.50 : x
2. Step 2: Convert to fraction form
   28,150.61/42,235.29 = 9,432.50/x
3. Step 3: Cross multiply
   28,150.61x = 42,235.29 × 9,432.50
4. Step 4: Simplify right side
   28,150.61x = 398,384,161.75
5. Step 5: Solve for x
   x = 398,384,161.75/28,150.61
6. Step 6: Final answer
   x = 14,151.89