Finding the Fourth Proportional to 239,400.30, 359,109.54 and 89,624.82

Step by Step Solution

1. Step 1: Write the proportion equation
   239,400.30 : 359,109.54 = 89,624.82 : x
2. Step 2: Convert to fraction form
   239,400.30/359,109.54 = 89,624.82/x
3. Step 3: Cross multiply
   239,400.30x = 359,109.54 × 89,624.82
4. Step 4: Simplify right side
   239,400.30x = 32,185,127,882.78
5. Step 5: Solve for x
   x = 32,185,127,882.78/239,400.30
6. Step 6: Final answer
   x = 134,440.63