Finding the Fourth Proportional to 81,559.62, 112,557.42 and 45,751.86

Step by Step Solution

1. Step 1: Write the proportion equation
   81,559.62 : 112,557.42 = 45,751.86 : x
2. Step 2: Convert to fraction form
   81,559.62/112,557.42 = 45,751.86/x
3. Step 3: Cross multiply
   81,559.62x = 112,557.42 × 45,751.86
4. Step 4: Simplify right side
   81,559.62x = 5,149,711,321.80
5. Step 5: Solve for x
   x = 5,149,711,321.80/81,559.62
6. Step 6: Final answer
   x = 63,140.45