Finding the Fourth Proportional to 389,914.48, 584,892.51 and 123,696.28

Step by Step Solution

1. Step 1: Write the proportion equation
   389,914.48 : 584,892.51 = 123,696.28 : x
2. Step 2: Convert to fraction form
   389,914.48/584,892.51 = 123,696.28/x
3. Step 3: Cross multiply
   389,914.48x = 584,892.51 × 123,696.28
4. Step 4: Simplify right side
   389,914.48x = 72,349,027,686.86
5. Step 5: Solve for x
   x = 72,349,027,686.86/389,914.48
6. Step 6: Final answer
   x = 185,551.02