Finding the Fourth Proportional to 81,522, 112,498.92 and 45,711.90

Step by Step Solution

1. Step 1: Write the proportion equation
   81,522 : 112,498.92 = 45,711.90 : x
2. Step 2: Convert to fraction form
   81,522/112,498.92 = 45,711.90/x
3. Step 3: Cross multiply
   81,522x = 112,498.92 × 45,711.90
4. Step 4: Simplify right side
   81,522x = 5,142,539,381.15
5. Step 5: Solve for x
   x = 5,142,539,381.15/81,522
6. Step 6: Final answer
   x = 63,081.61