Finding the Fourth Proportional to 8,758.62, 12,080.04 and 5,615.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.62 : 12,080.04 = 5,615.10 : x
2. Step 2: Convert to fraction form
   8,758.62/12,080.04 = 5,615.10/x
3. Step 3: Cross multiply
   8,758.62x = 12,080.04 × 5,615.10
4. Step 4: Simplify right side
   8,758.62x = 67,830,632.60
5. Step 5: Solve for x
   x = 67,830,632.60/8,758.62
6. Step 6: Final answer
   x = 7,744.44