Finding the Fourth Proportional to 22,338.24, 30,826.56 and 12,906.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,338.24 : 30,826.56 = 12,906.24 : x
2. Step 2: Convert to fraction form
   22,338.24/30,826.56 = 12,906.24/x
3. Step 3: Cross multiply
   22,338.24x = 30,826.56 × 12,906.24
4. Step 4: Simplify right side
   22,338.24x = 397,854,981.73
5. Step 5: Solve for x
   x = 397,854,981.73/22,338.24
6. Step 6: Final answer
   x = 17,810.49