Finding the Fourth Proportional to 281,585.72, 422,379.98 and 71,223.86

Step by Step Solution

1. Step 1: Write the proportion equation
   281,585.72 : 422,379.98 = 71,223.86 : x
2. Step 2: Convert to fraction form
   281,585.72/422,379.98 = 71,223.86/x
3. Step 3: Cross multiply
   281,585.72x = 422,379.98 × 71,223.86
4. Step 4: Simplify right side
   281,585.72x = 30,083,530,094.30
5. Step 5: Solve for x
   x = 30,083,530,094.30/281,585.72
6. Step 6: Final answer
   x = 106,836.14