Finding the Fourth Proportional to 150,155.30, 207,193.86 and 89,713.15

Step by Step Solution

1. Step 1: Write the proportion equation
   150,155.30 : 207,193.86 = 89,713.15 : x
2. Step 2: Convert to fraction form
   150,155.30/207,193.86 = 89,713.15/x
3. Step 3: Cross multiply
   150,155.30x = 207,193.86 × 89,713.15
4. Step 4: Simplify right side
   150,155.30x = 18,588,013,323.27
5. Step 5: Solve for x
   x = 18,588,013,323.27/150,155.30
6. Step 6: Final answer
   x = 123,791.92