Finding the Fourth Proportional to 269,978.43, 372,574.17 and 156,801.18

Step by Step Solution

1. Step 1: Write the proportion equation
   269,978.43 : 372,574.17 = 156,801.18 : x
2. Step 2: Convert to fraction form
   269,978.43/372,574.17 = 156,801.18/x
3. Step 3: Cross multiply
   269,978.43x = 372,574.17 × 156,801.18
4. Step 4: Simplify right side
   269,978.43x = 58,420,069,493.52
5. Step 5: Solve for x
   x = 58,420,069,493.52/269,978.43
6. Step 6: Final answer
   x = 216,387.91