Finding the Fourth Proportional to 150,681, 207,949.50 and 83,613

Step by Step Solution

1. Step 1: Write the proportion equation
   150,681 : 207,949.50 = 83,613 : x
2. Step 2: Convert to fraction form
   150,681/207,949.50 = 83,613/x
3. Step 3: Cross multiply
   150,681x = 207,949.50 × 83,613
4. Step 4: Simplify right side
   150,681x = 17,387,281,543.50
5. Step 5: Solve for x
   x = 17,387,281,543.50/150,681
6. Step 6: Final answer
   x = 115,391.33