Finding the Fourth Proportional to 22,879.15, 31,573.88 and 12,807.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,879.15 : 31,573.88 = 12,807.53 : x
2. Step 2: Convert to fraction form
   22,879.15/31,573.88 = 12,807.53/x
3. Step 3: Cross multiply
   22,879.15x = 31,573.88 × 12,807.53
4. Step 4: Simplify right side
   22,879.15x = 404,383,352.39
5. Step 5: Solve for x
   x = 404,383,352.39/22,879.15
6. Step 6: Final answer
   x = 17,674.76