Finding the Fourth Proportional to 12,744.29, 17,585.82 and 7,442.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,744.29 : 17,585.82 = 7,442.18 : x
2. Step 2: Convert to fraction form
   12,744.29/17,585.82 = 7,442.18/x
3. Step 3: Cross multiply
   12,744.29x = 17,585.82 × 7,442.18
4. Step 4: Simplify right side
   12,744.29x = 130,876,837.89
5. Step 5: Solve for x
   x = 130,876,837.89/12,744.29
6. Step 6: Final answer
   x = 10,269.45