Finding the Fourth Proportional to 150,618.72, 207,854.08 and 83,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,618.72 : 207,854.08 = 83,550.72 : x
2. Step 2: Convert to fraction form
   150,618.72/207,854.08 = 83,550.72/x
3. Step 3: Cross multiply
   150,618.72x = 207,854.08 × 83,550.72
4. Step 4: Simplify right side
   150,618.72x = 17,366,358,038.94
5. Step 5: Solve for x
   x = 17,366,358,038.94/150,618.72
6. Step 6: Final answer
   x = 115,300.13