Finding the Fourth Proportional to 9,280.72, 12,808.04 and 5,089.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.72 : 12,808.04 = 5,089.24 : x
2. Step 2: Convert to fraction form
   9,280.72/12,808.04 = 5,089.24/x
3. Step 3: Cross multiply
   9,280.72x = 12,808.04 × 5,089.24
4. Step 4: Simplify right side
   9,280.72x = 65,183,189.49
5. Step 5: Solve for x
   x = 65,183,189.49/9,280.72
6. Step 6: Final answer
   x = 7,023.51