Finding the Fourth Proportional to 389,630.00, 584,446.62 and 123,577.40

Step by Step Solution

1. Step 1: Write the proportion equation
   389,630.00 : 584,446.62 = 123,577.40 : x
2. Step 2: Convert to fraction form
   389,630.00/584,446.62 = 123,577.40/x
3. Step 3: Cross multiply
   389,630.00x = 584,446.62 × 123,577.40
4. Step 4: Simplify right side
   389,630.00x = 72,224,390,816.15
5. Step 5: Solve for x
   x = 72,224,390,816.15/389,630.00
6. Step 6: Final answer
   x = 185,366.61