Finding the Fourth Proportional to 8,757.54, 12,085.42 and 5,613.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.54 : 12,085.42 = 5,613.74 : x
2. Step 2: Convert to fraction form
   8,757.54/12,085.42 = 5,613.74/x
3. Step 3: Cross multiply
   8,757.54x = 12,085.42 × 5,613.74
4. Step 4: Simplify right side
   8,757.54x = 67,844,405.67
5. Step 5: Solve for x
   x = 67,844,405.67/8,757.54
6. Step 6: Final answer
   x = 7,746.97