Finding the Fourth Proportional to 16,426.69, 22,668.86 and 9,353.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,426.69 : 22,668.86 = 9,353.12 : x
2. Step 2: Convert to fraction form
   16,426.69/22,668.86 = 9,353.12/x
3. Step 3: Cross multiply
   16,426.69x = 22,668.86 × 9,353.12
4. Step 4: Simplify right side
   16,426.69x = 212,024,567.84
5. Step 5: Solve for x
   x = 212,024,567.84/16,426.69
6. Step 6: Final answer
   x = 12,907.32