Finding the Fourth Proportional to 12,674.43, 17,490.22 and 7,570.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.43 : 17,490.22 = 7,570.81 : x
2. Step 2: Convert to fraction form
   12,674.43/17,490.22 = 7,570.81/x
3. Step 3: Cross multiply
   12,674.43x = 17,490.22 × 7,570.81
4. Step 4: Simplify right side
   12,674.43x = 132,415,132.48
5. Step 5: Solve for x
   x = 132,415,132.48/12,674.43
6. Step 6: Final answer
   x = 10,447.42