Finding the Fourth Proportional to 389,592.96, 584,311.68 and 123,308.16

Step by Step Solution

1. Step 1: Write the proportion equation
   389,592.96 : 584,311.68 = 123,308.16 : x
2. Step 2: Convert to fraction form
   389,592.96/584,311.68 = 123,308.16/x
3. Step 3: Cross multiply
   389,592.96x = 584,311.68 × 123,308.16
4. Step 4: Simplify right side
   389,592.96x = 72,050,398,127.31
5. Step 5: Solve for x
   x = 72,050,398,127.31/389,592.96
6. Step 6: Final answer
   x = 184,937.63