Finding the Fourth Proportional to 87,345.94, 131,046.60 and 31,184.83

Step by Step Solution

1. Step 1: Write the proportion equation
   87,345.94 : 131,046.60 = 31,184.83 : x
2. Step 2: Convert to fraction form
   87,345.94/131,046.60 = 31,184.83/x
3. Step 3: Cross multiply
   87,345.94x = 131,046.60 × 31,184.83
4. Step 4: Simplify right side
   87,345.94x = 4,086,665,287.85
5. Step 5: Solve for x
   x = 4,086,665,287.85/87,345.94
6. Step 6: Final answer
   x = 46,787.12