Finding the Fourth Proportional to 81,211.52, 112,073.46 and 45,404.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,211.52 : 112,073.46 = 45,404.12 : x
2. Step 2: Convert to fraction form
   81,211.52/112,073.46 = 45,404.12/x
3. Step 3: Cross multiply
   81,211.52x = 112,073.46 × 45,404.12
4. Step 4: Simplify right side
   81,211.52x = 5,088,596,826.66
5. Step 5: Solve for x
   x = 5,088,596,826.66/81,211.52
6. Step 6: Final answer
   x = 62,658.56