Finding the Fourth Proportional to 12,460.83, 17,197.17 and 9,311.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,460.83 : 17,197.17 = 9,311.55 : x
2. Step 2: Convert to fraction form
   12,460.83/17,197.17 = 9,311.55/x
3. Step 3: Cross multiply
   12,460.83x = 17,197.17 × 9,311.55
4. Step 4: Simplify right side
   12,460.83x = 160,132,308.31
5. Step 5: Solve for x
   x = 160,132,308.31/12,460.83
6. Step 6: Final answer
   x = 12,850.85