Finding the Fourth Proportional to 281,501.46, 422,254.92 and 71,139.42

Step by Step Solution

1. Step 1: Write the proportion equation
   281,501.46 : 422,254.92 = 71,139.42 : x
2. Step 2: Convert to fraction form
   281,501.46/422,254.92 = 71,139.42/x
3. Step 3: Cross multiply
   281,501.46x = 422,254.92 × 71,139.42
4. Step 4: Simplify right side
   281,501.46x = 30,038,970,100.95
5. Step 5: Solve for x
   x = 30,038,970,100.95/281,501.46
6. Step 6: Final answer
   x = 106,709.82