Finding the Fourth Proportional to 10,326.48, 14,251.72 and 9,693.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,326.48 : 14,251.72 = 9,693.12 : x
2. Step 2: Convert to fraction form
   10,326.48/14,251.72 = 9,693.12/x
3. Step 3: Cross multiply
   10,326.48x = 14,251.72 × 9,693.12
4. Step 4: Simplify right side
   10,326.48x = 138,143,632.17
5. Step 5: Solve for x
   x = 138,143,632.17/10,326.48
6. Step 6: Final answer
   x = 13,377.61