Finding the Fourth Proportional to 22,520.98, 31,077.60 and 12,448.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,520.98 : 31,077.60 = 12,448.82 : x
2. Step 2: Convert to fraction form
   22,520.98/31,077.60 = 12,448.82/x
3. Step 3: Cross multiply
   22,520.98x = 31,077.60 × 12,448.82
4. Step 4: Simplify right side
   22,520.98x = 386,879,448.43
5. Step 5: Solve for x
   x = 386,879,448.43/22,520.98
6. Step 6: Final answer
   x = 17,178.62