Finding the Fourth Proportional to 9,280.68, 12,807.36 and 5,088.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.68 : 12,807.36 = 5,088.84 : x
2. Step 2: Convert to fraction form
   9,280.68/12,807.36 = 5,088.84/x
3. Step 3: Cross multiply
   9,280.68x = 12,807.36 × 5,088.84
4. Step 4: Simplify right side
   9,280.68x = 65,174,605.86
5. Step 5: Solve for x
   x = 65,174,605.86/9,280.68
6. Step 6: Final answer
   x = 7,022.61