Finding the Fourth Proportional to 986,078.72, 1,479,114.84 and 238,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   986,078.72 : 1,479,114.84 = 238,124.72 : x
2. Step 2: Convert to fraction form
   986,078.72/1,479,114.84 = 238,124.72/x
3. Step 3: Cross multiply
   986,078.72x = 1,479,114.84 × 238,124.72
4. Step 4: Simplify right side
   986,078.72x = 352,213,807,122.85
5. Step 5: Solve for x
   x = 352,213,807,122.85/986,078.72
6. Step 6: Final answer
   x = 357,186.30