Finding the Fourth Proportional to 9,766.74, 13,475.87 and 5,517.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766.74 : 13,475.87 = 5,517.59 : x
2. Step 2: Convert to fraction form
   9,766.74/13,475.87 = 5,517.59/x
3. Step 3: Cross multiply
   9,766.74x = 13,475.87 × 5,517.59
4. Step 4: Simplify right side
   9,766.74x = 74,354,251.28
5. Step 5: Solve for x
   x = 74,354,251.28/9,766.74
6. Step 6: Final answer
   x = 7,613.00