Finding the Fourth Proportional to 8,757.55, 12,085.41 and 5,613.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.55 : 12,085.41 = 5,613.74 : x
2. Step 2: Convert to fraction form
   8,757.55/12,085.41 = 5,613.74/x
3. Step 3: Cross multiply
   8,757.55x = 12,085.41 × 5,613.74
4. Step 4: Simplify right side
   8,757.55x = 67,844,349.53
5. Step 5: Solve for x
   x = 67,844,349.53/8,757.55
6. Step 6: Final answer
   x = 7,746.96