Finding the Fourth Proportional to 9,280.50, 12,807.09 and 5,088.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.50 : 12,807.09 = 5,088.84 : x
2. Step 2: Convert to fraction form
   9,280.50/12,807.09 = 5,088.84/x
3. Step 3: Cross multiply
   9,280.50x = 12,807.09 × 5,088.84
4. Step 4: Simplify right side
   9,280.50x = 65,173,231.88
5. Step 5: Solve for x
   x = 65,173,231.88/9,280.50
6. Step 6: Final answer
   x = 7,022.60