Finding the Fourth Proportional to 275,771.98, 413,308.05 and 142,627.42

Step by Step Solution

1. Step 1: Write the proportion equation
   275,771.98 : 413,308.05 = 142,627.42 : x
2. Step 2: Convert to fraction form
   275,771.98/413,308.05 = 142,627.42/x
3. Step 3: Cross multiply
   275,771.98x = 413,308.05 × 142,627.42
4. Step 4: Simplify right side
   275,771.98x = 58,949,060,836.73
5. Step 5: Solve for x
   x = 58,949,060,836.73/275,771.98
6. Step 6: Final answer
   x = 213,760.15