Finding the Fourth Proportional to 12,540.88, 17,306.76 and 7,570

Step by Step Solution

1. Step 1: Write the proportion equation
   12,540.88 : 17,306.76 = 7,570 : x
2. Step 2: Convert to fraction form
   12,540.88/17,306.76 = 7,570/x
3. Step 3: Cross multiply
   12,540.88x = 17,306.76 × 7,570
4. Step 4: Simplify right side
   12,540.88x = 131,012,173.20
5. Step 5: Solve for x
   x = 131,012,173.20/12,540.88
6. Step 6: Final answer
   x = 10,446.81