Finding the Fourth Proportional to 12,797.72, 17,654.82 and 7,489.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,797.72 : 17,654.82 = 7,489.28 : x
2. Step 2: Convert to fraction form
   12,797.72/17,654.82 = 7,489.28/x
3. Step 3: Cross multiply
   12,797.72x = 17,654.82 × 7,489.28
4. Step 4: Simplify right side
   12,797.72x = 132,221,890.33
5. Step 5: Solve for x
   x = 132,221,890.33/12,797.72
6. Step 6: Final answer
   x = 10,331.68