Finding the Fourth Proportional to 10,426.10, 14,394.76 and 9,305.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.10 : 14,394.76 = 9,305.12 : x
2. Step 2: Convert to fraction form
   10,426.10/14,394.76 = 9,305.12/x
3. Step 3: Cross multiply
   10,426.10x = 14,394.76 × 9,305.12
4. Step 4: Simplify right side
   10,426.10x = 133,944,969.17
5. Step 5: Solve for x
   x = 133,944,969.17/10,426.10
6. Step 6: Final answer
   x = 12,847.08