Finding the Fourth Proportional to 108,456.53, 149,671.55 and 62,490.83

Step by Step Solution

1. Step 1: Write the proportion equation
   108,456.53 : 149,671.55 = 62,490.83 : x
2. Step 2: Convert to fraction form
   108,456.53/149,671.55 = 62,490.83/x
3. Step 3: Cross multiply
   108,456.53x = 149,671.55 × 62,490.83
4. Step 4: Simplify right side
   108,456.53x = 9,353,098,794.76
5. Step 5: Solve for x
   x = 9,353,098,794.76/108,456.53
6. Step 6: Final answer
   x = 86,238.22