Finding the Fourth Proportional to 12,747.72, 17,582.49 and 7,442.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,747.72 : 17,582.49 = 7,442.22 : x
2. Step 2: Convert to fraction form
   12,747.72/17,582.49 = 7,442.22/x
3. Step 3: Cross multiply
   12,747.72x = 17,582.49 × 7,442.22
4. Step 4: Simplify right side
   12,747.72x = 130,852,758.73
5. Step 5: Solve for x
   x = 130,852,758.73/12,747.72
6. Step 6: Final answer
   x = 10,264.80