Finding the Fourth Proportional to 384,141.12, 576,414.72 and 272,542.56

Step by Step Solution

1. Step 1: Write the proportion equation
   384,141.12 : 576,414.72 = 272,542.56 : x
2. Step 2: Convert to fraction form
   384,141.12/576,414.72 = 272,542.56/x
3. Step 3: Cross multiply
   384,141.12x = 576,414.72 × 272,542.56
4. Step 4: Simplify right side
   384,141.12x = 157,097,543,410.48
5. Step 5: Solve for x
   x = 157,097,543,410.48/384,141.12
6. Step 6: Final answer
   x = 408,957.89