Finding the Fourth Proportional to 16,380.29, 22,604.83 and 9,210.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.29 : 22,604.83 = 9,210.61 : x
2. Step 2: Convert to fraction form
   16,380.29/22,604.83 = 9,210.61/x
3. Step 3: Cross multiply
   16,380.29x = 22,604.83 × 9,210.61
4. Step 4: Simplify right side
   16,380.29x = 208,204,278.48
5. Step 5: Solve for x
   x = 208,204,278.48/16,380.29
6. Step 6: Final answer
   x = 12,710.66