Finding the Fourth Proportional to 11,443.40, 17,167.69 and 6,178.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,443.40 : 17,167.69 = 6,178.31 : x
2. Step 2: Convert to fraction form
   11,443.40/17,167.69 = 6,178.31/x
3. Step 3: Cross multiply
   11,443.40x = 17,167.69 × 6,178.31
4. Step 4: Simplify right side
   11,443.40x = 106,067,279.69
5. Step 5: Solve for x
   x = 106,067,279.69/11,443.40
6. Step 6: Final answer
   x = 9,268.86