Finding the Fourth Proportional to 124,502.69, 186,942.15 and 99,468.42

Step by Step Solution

1. Step 1: Write the proportion equation
   124,502.69 : 186,942.15 = 99,468.42 : x
2. Step 2: Convert to fraction form
   124,502.69/186,942.15 = 99,468.42/x
3. Step 3: Cross multiply
   124,502.69x = 186,942.15 × 99,468.42
4. Step 4: Simplify right side
   124,502.69x = 18,594,840,291.90
5. Step 5: Solve for x
   x = 18,594,840,291.90/124,502.69
6. Step 6: Final answer
   x = 149,352.93