Finding the Fourth Proportional to 124,532.69, 186,987.15 and 99,498.42

Step by Step Solution

1. Step 1: Write the proportion equation
   124,532.69 : 186,987.15 = 99,498.42 : x
2. Step 2: Convert to fraction form
   124,532.69/186,987.15 = 99,498.42/x
3. Step 3: Cross multiply
   124,532.69x = 186,987.15 × 99,498.42
4. Step 4: Simplify right side
   124,532.69x = 18,604,925,985.30
5. Step 5: Solve for x
   x = 18,604,925,985.30/124,532.69
6. Step 6: Final answer
   x = 149,397.94