Finding the Fourth Proportional to 124,162.72, 186,339.12 and 88,136.62

Step by Step Solution

1. Step 1: Write the proportion equation
   124,162.72 : 186,339.12 = 88,136.62 : x
2. Step 2: Convert to fraction form
   124,162.72/186,339.12 = 88,136.62/x
3. Step 3: Cross multiply
   124,162.72x = 186,339.12 × 88,136.62
4. Step 4: Simplify right side
   124,162.72x = 16,423,300,210.57
5. Step 5: Solve for x
   x = 16,423,300,210.57/124,162.72
6. Step 6: Final answer
   x = 132,272.39