Finding the Fourth Proportional to 81,264.17, 112,142.39 and 45,458.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,264.17 : 112,142.39 = 45,458.12 : x
2. Step 2: Convert to fraction form
   81,264.17/112,142.39 = 45,458.12/x
3. Step 3: Cross multiply
   81,264.17x = 112,142.39 × 45,458.12
4. Step 4: Simplify right side
   81,264.17x = 5,097,781,433.70
5. Step 5: Solve for x
   x = 5,097,781,433.70/81,264.17
6. Step 6: Final answer
   x = 62,730.99