Finding the Fourth Proportional to 87,889.57, 131,807.41 and 31,722.82

Step by Step Solution

1. Step 1: Write the proportion equation
   87,889.57 : 131,807.41 = 31,722.82 : x
2. Step 2: Convert to fraction form
   87,889.57/131,807.41 = 31,722.82/x
3. Step 3: Cross multiply
   87,889.57x = 131,807.41 × 31,722.82
4. Step 4: Simplify right side
   87,889.57x = 4,181,302,742.10
5. Step 5: Solve for x
   x = 4,181,302,742.10/87,889.57
6. Step 6: Final answer
   x = 47,574.50