Finding the Fourth Proportional to 384,168.69, 576,362.39 and 131,482.71

Step by Step Solution

1. Step 1: Write the proportion equation
   384,168.69 : 576,362.39 = 131,482.71 : x
2. Step 2: Convert to fraction form
   384,168.69/576,362.39 = 131,482.71/x
3. Step 3: Cross multiply
   384,168.69x = 576,362.39 × 131,482.71
4. Step 4: Simplify right side
   384,168.69x = 75,781,688,321.86
5. Step 5: Solve for x
   x = 75,781,688,321.86/384,168.69
6. Step 6: Final answer
   x = 197,261.49