Finding the Fourth Proportional to 81,711.32, 112,757.82 and 45,411.08

Step by Step Solution

1. Step 1: Write the proportion equation
   81,711.32 : 112,757.82 = 45,411.08 : x
2. Step 2: Convert to fraction form
   81,711.32/112,757.82 = 45,411.08/x
3. Step 3: Cross multiply
   81,711.32x = 112,757.82 × 45,411.08
4. Step 4: Simplify right side
   81,711.32x = 5,120,454,384.65
5. Step 5: Solve for x
   x = 5,120,454,384.65/81,711.32
6. Step 6: Final answer
   x = 62,665.18