Finding the Fourth Proportional to 22,879.10, 31,573.18 and 12,807.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,879.10 : 31,573.18 = 12,807.56 : x
2. Step 2: Convert to fraction form
   22,879.10/31,573.18 = 12,807.56/x
3. Step 3: Cross multiply
   22,879.10x = 31,573.18 × 12,807.56
4. Step 4: Simplify right side
   22,879.10x = 404,375,333.20
5. Step 5: Solve for x
   x = 404,375,333.20/22,879.10
6. Step 6: Final answer
   x = 17,674.44