Finding the Fourth Proportional to 12,443.42, 17,171.92 and 6,854.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.42 : 17,171.92 = 6,854.42 : x
2. Step 2: Convert to fraction form
   12,443.42/17,171.92 = 6,854.42/x
3. Step 3: Cross multiply
   12,443.42x = 17,171.92 × 6,854.42
4. Step 4: Simplify right side
   12,443.42x = 117,703,564.83
5. Step 5: Solve for x
   x = 117,703,564.83/12,443.42
6. Step 6: Final answer
   x = 9,459.10