Finding the Fourth Proportional to 404,559.12, 606,638.96 and 124,008.72

Step by Step Solution

1. Step 1: Write the proportion equation
   404,559.12 : 606,638.96 = 124,008.72 : x
2. Step 2: Convert to fraction form
   404,559.12/606,638.96 = 124,008.72/x
3. Step 3: Cross multiply
   404,559.12x = 606,638.96 × 124,008.72
4. Step 4: Simplify right side
   404,559.12x = 75,228,520,931.73
5. Step 5: Solve for x
   x = 75,228,520,931.73/404,559.12
6. Step 6: Final answer
   x = 185,951.86