Finding the Fourth Proportional to 59,747.92, 89,640.71 and 28,156.70

Step by Step Solution

1. Step 1: Write the proportion equation
   59,747.92 : 89,640.71 = 28,156.70 : x
2. Step 2: Convert to fraction form
   59,747.92/89,640.71 = 28,156.70/x
3. Step 3: Cross multiply
   59,747.92x = 89,640.71 × 28,156.70
4. Step 4: Simplify right side
   59,747.92x = 2,523,986,726.50
5. Step 5: Solve for x
   x = 2,523,986,726.50/59,747.92
6. Step 6: Final answer
   x = 42,243.93