Finding the Fourth Proportional to 22,338.05, 30,826.55 and 12,906.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,338.05 : 30,826.55 = 12,906.62 : x
2. Step 2: Convert to fraction form
   22,338.05/30,826.55 = 12,906.62/x
3. Step 3: Cross multiply
   22,338.05x = 30,826.55 × 12,906.62
4. Step 4: Simplify right side
   22,338.05x = 397,866,348.10
5. Step 5: Solve for x
   x = 397,866,348.10/22,338.05
6. Step 6: Final answer
   x = 17,811.15