Finding the Fourth Proportional to 414,196.47, 571,634.43 and 253,158.78

Step by Step Solution

1. Step 1: Write the proportion equation
   414,196.47 : 571,634.43 = 253,158.78 : x
2. Step 2: Convert to fraction form
   414,196.47/571,634.43 = 253,158.78/x
3. Step 3: Cross multiply
   414,196.47x = 571,634.43 × 253,158.78
4. Step 4: Simplify right side
   414,196.47x = 144,714,274,904.80
5. Step 5: Solve for x
   x = 144,714,274,904.80/414,196.47
6. Step 6: Final answer
   x = 349,385.58