Finding the Fourth Proportional to 12,426.23, 17,146.64 and 8,401.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.23 : 17,146.64 = 8,401.82 : x
2. Step 2: Convert to fraction form
   12,426.23/17,146.64 = 8,401.82/x
3. Step 3: Cross multiply
   12,426.23x = 17,146.64 × 8,401.82
4. Step 4: Simplify right side
   12,426.23x = 144,062,855.14
5. Step 5: Solve for x
   x = 144,062,855.14/12,426.23
6. Step 6: Final answer
   x = 11,593.45