Finding the Fourth Proportional to 12,540.48, 17,306.00 and 7,163.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,540.48 : 17,306.00 = 7,163.63 : x
2. Step 2: Convert to fraction form
   12,540.48/17,306.00 = 7,163.63/x
3. Step 3: Cross multiply
   12,540.48x = 17,306.00 × 7,163.63
4. Step 4: Simplify right side
   12,540.48x = 123,973,658.43
5. Step 5: Solve for x
   x = 123,973,658.43/12,540.48
6. Step 6: Final answer
   x = 9,885.88