Finding the Fourth Proportional to 150,105.09, 207,140.45 and 89,662.08

Step by Step Solution

1. Step 1: Write the proportion equation
   150,105.09 : 207,140.45 = 89,662.08 : x
2. Step 2: Convert to fraction form
   150,105.09/207,140.45 = 89,662.08/x
3. Step 3: Cross multiply
   150,105.09x = 207,140.45 × 89,662.08
4. Step 4: Simplify right side
   150,105.09x = 18,572,643,150.83
5. Step 5: Solve for x
   x = 18,572,643,150.83/150,105.09
6. Step 6: Final answer
   x = 123,730.94