Finding the Fourth Proportional to 16,426.66, 22,668.82 and 9,353.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,426.66 : 22,668.82 = 9,353.09 : x
2. Step 2: Convert to fraction form
   16,426.66/22,668.82 = 9,353.09/x
3. Step 3: Cross multiply
   16,426.66x = 22,668.82 × 9,353.09
4. Step 4: Simplify right side
   16,426.66x = 212,023,513.65
5. Step 5: Solve for x
   x = 212,023,513.65/16,426.66
6. Step 6: Final answer
   x = 12,907.28