Finding the Fourth Proportional to 87,772.54, 131,732.52 and 37,890.31

Step by Step Solution

1. Step 1: Write the proportion equation
   87,772.54 : 131,732.52 = 37,890.31 : x
2. Step 2: Convert to fraction form
   87,772.54/131,732.52 = 37,890.31/x
3. Step 3: Cross multiply
   87,772.54x = 131,732.52 × 37,890.31
4. Step 4: Simplify right side
   87,772.54x = 4,991,386,019.88
5. Step 5: Solve for x
   x = 4,991,386,019.88/87,772.54
6. Step 6: Final answer
   x = 56,867.28