Finding the Fourth Proportional to 99,233.37, 148,517.42 and 81,463.05

Step by Step Solution

1. Step 1: Write the proportion equation
   99,233.37 : 148,517.42 = 81,463.05 : x
2. Step 2: Convert to fraction form
   99,233.37/148,517.42 = 81,463.05/x
3. Step 3: Cross multiply
   99,233.37x = 148,517.42 × 81,463.05
4. Step 4: Simplify right side
   99,233.37x = 12,098,681,604.02
5. Step 5: Solve for x
   x = 12,098,681,604.02/99,233.37
6. Step 6: Final answer
   x = 121,921.50