Finding the Fourth Proportional to 12,747.87, 17,591.82 and 7,082.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,747.87 : 17,591.82 = 7,082.55 : x
2. Step 2: Convert to fraction form
   12,747.87/17,591.82 = 7,082.55/x
3. Step 3: Cross multiply
   12,747.87x = 17,591.82 × 7,082.55
4. Step 4: Simplify right side
   12,747.87x = 124,594,944.74
5. Step 5: Solve for x
   x = 124,594,944.74/12,747.87
6. Step 6: Final answer
   x = 9,773.79