Finding the Fourth Proportional to 8,751.30, 12,080.88 and 5,609.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,751.30 : 12,080.88 = 5,609.28 : x
2. Step 2: Convert to fraction form
   8,751.30/12,080.88 = 5,609.28/x
3. Step 3: Cross multiply
   8,751.30x = 12,080.88 × 5,609.28
4. Step 4: Simplify right side
   8,751.30x = 67,765,038.57
5. Step 5: Solve for x
   x = 67,765,038.57/8,751.30
6. Step 6: Final answer
   x = 7,743.43