Finding the Fourth Proportional to 389,614.60, 584,443.98 and 109,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   389,614.60 : 584,443.98 = 109,153.72 : x
2. Step 2: Convert to fraction form
   389,614.60/584,443.98 = 109,153.72/x
3. Step 3: Cross multiply
   389,614.60x = 584,443.98 × 109,153.72
4. Step 4: Simplify right side
   389,614.60x = 63,794,234,548.61
5. Step 5: Solve for x
   x = 63,794,234,548.61/389,614.60
6. Step 6: Final answer
   x = 163,736.77