Finding the Fourth Proportional to 9,280.96, 12,807.66 and 5,089.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.96 : 12,807.66 = 5,089.12 : x
2. Step 2: Convert to fraction form
   9,280.96/12,807.66 = 5,089.12/x
3. Step 3: Cross multiply
   9,280.96x = 12,807.66 × 5,089.12
4. Step 4: Simplify right side
   9,280.96x = 65,179,718.66
5. Step 5: Solve for x
   x = 65,179,718.66/9,280.96
6. Step 6: Final answer
   x = 7,022.95