Finding the Fourth Proportional to 12,759, 17,609.31 and 7,456.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,759 : 17,609.31 = 7,456.74 : x
2. Step 2: Convert to fraction form
   12,759/17,609.31 = 7,456.74/x
3. Step 3: Cross multiply
   12,759x = 17,609.31 × 7,456.74
4. Step 4: Simplify right side
   12,759x = 131,308,046.25
5. Step 5: Solve for x
   x = 131,308,046.25/12,759
6. Step 6: Final answer
   x = 10,291.41