Finding the Fourth Proportional to 22,730.05, 31,367.38 and 12,658.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,730.05 : 31,367.38 = 12,658.61 : x
2. Step 2: Convert to fraction form
   22,730.05/31,367.38 = 12,658.61/x
3. Step 3: Cross multiply
   22,730.05x = 31,367.38 × 12,658.61
4. Step 4: Simplify right side
   22,730.05x = 397,067,210.01
5. Step 5: Solve for x
   x = 397,067,210.01/22,730.05
6. Step 6: Final answer
   x = 17,468.83