Finding the Fourth Proportional to 12,429.82, 17,133.23 and 8,395.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429.82 : 17,133.23 = 8,395.38 : x
2. Step 2: Convert to fraction form
   12,429.82/17,133.23 = 8,395.38/x
3. Step 3: Cross multiply
   12,429.82x = 17,133.23 × 8,395.38
4. Step 4: Simplify right side
   12,429.82x = 143,839,890.81
5. Step 5: Solve for x
   x = 143,839,890.81/12,429.82
6. Step 6: Final answer
   x = 11,572.17