Finding the Fourth Proportional to 12,609.09, 17,404.38 and 7,574.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,609.09 : 17,404.38 = 7,574.13 : x
2. Step 2: Convert to fraction form
   12,609.09/17,404.38 = 7,574.13/x
3. Step 3: Cross multiply
   12,609.09x = 17,404.38 × 7,574.13
4. Step 4: Simplify right side
   12,609.09x = 131,823,036.69
5. Step 5: Solve for x
   x = 131,823,036.69/12,609.09
6. Step 6: Final answer
   x = 10,454.60