Finding the Fourth Proportional to 16,426.16, 22,659.98 and 9,708.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,426.16 : 22,659.98 = 9,708.54 : x
2. Step 2: Convert to fraction form
   16,426.16/22,659.98 = 9,708.54/x
3. Step 3: Cross multiply
   16,426.16x = 22,659.98 × 9,708.54
4. Step 4: Simplify right side
   16,426.16x = 219,995,273.69
5. Step 5: Solve for x
   x = 219,995,273.69/16,426.16
6. Step 6: Final answer
   x = 13,392.99