Finding the Fourth Proportional to 87,800.00, 131,686.61 and 28,635.57

Step by Step Solution

1. Step 1: Write the proportion equation
   87,800.00 : 131,686.61 = 28,635.57 : x
2. Step 2: Convert to fraction form
   87,800.00/131,686.61 = 28,635.57/x
3. Step 3: Cross multiply
   87,800.00x = 131,686.61 × 28,635.57
4. Step 4: Simplify right side
   87,800.00x = 3,770,920,995.54
5. Step 5: Solve for x
   x = 3,770,920,995.54/87,800.00
6. Step 6: Final answer
   x = 42,948.99