Finding the Fourth Proportional to 150,238.04, 207,328.18 and 89,805.78

Step by Step Solution

1. Step 1: Write the proportion equation
   150,238.04 : 207,328.18 = 89,805.78 : x
2. Step 2: Convert to fraction form
   150,238.04/207,328.18 = 89,805.78/x
3. Step 3: Cross multiply
   150,238.04x = 207,328.18 × 89,805.78
4. Step 4: Simplify right side
   150,238.04x = 18,619,268,920.88
5. Step 5: Solve for x
   x = 18,619,268,920.88/150,238.04
6. Step 6: Final answer
   x = 123,931.79