Finding the Fourth Proportional to 150,293.28, 207,404.32 and 86,630.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,293.28 : 207,404.32 = 86,630.72 : x
2. Step 2: Convert to fraction form
   150,293.28/207,404.32 = 86,630.72/x
3. Step 3: Cross multiply
   150,293.28x = 207,404.32 × 86,630.72
4. Step 4: Simplify right side
   150,293.28x = 17,967,585,572.71
5. Step 5: Solve for x
   x = 17,967,585,572.71/150,293.28
6. Step 6: Final answer
   x = 119,550.16