Finding the Fourth Proportional to 497,665.88, 746,627.52 and 142,705.88

Step by Step Solution

1. Step 1: Write the proportion equation
   497,665.88 : 746,627.52 = 142,705.88 : x
2. Step 2: Convert to fraction form
   497,665.88/746,627.52 = 142,705.88/x
3. Step 3: Cross multiply
   497,665.88x = 746,627.52 × 142,705.88
4. Step 4: Simplify right side
   497,665.88x = 106,548,137,273.82
5. Step 5: Solve for x
   x = 106,548,137,273.82/497,665.88
6. Step 6: Final answer
   x = 214,095.72