Finding the Fourth Proportional to 389,443.35, 584,219.70 and 123,176.10

Step by Step Solution

1. Step 1: Write the proportion equation
   389,443.35 : 584,219.70 = 123,176.10 : x
2. Step 2: Convert to fraction form
   389,443.35/584,219.70 = 123,176.10/x
3. Step 3: Cross multiply
   389,443.35x = 584,219.70 × 123,176.10
4. Step 4: Simplify right side
   389,443.35x = 71,961,904,189.17
5. Step 5: Solve for x
   x = 71,961,904,189.17/389,443.35
6. Step 6: Final answer
   x = 184,781.44