Finding the Fourth Proportional to 9,013.14, 12,443.99 and 8,067.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.14 : 12,443.99 = 8,067.29 : x
2. Step 2: Convert to fraction form
   9,013.14/12,443.99 = 8,067.29/x
3. Step 3: Cross multiply
   9,013.14x = 12,443.99 × 8,067.29
4. Step 4: Simplify right side
   9,013.14x = 100,389,173.53
5. Step 5: Solve for x
   x = 100,389,173.53/9,013.14
6. Step 6: Final answer
   x = 11,138.09