Finding the Fourth Proportional to 9,280, 12,806.67 and 5,088.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280 : 12,806.67 = 5,088.52 : x
2. Step 2: Convert to fraction form
   9,280/12,806.67 = 5,088.52/x
3. Step 3: Cross multiply
   9,280x = 12,806.67 × 5,088.52
4. Step 4: Simplify right side
   9,280x = 65,166,996.43
5. Step 5: Solve for x
   x = 65,166,996.43/9,280
6. Step 6: Final answer
   x = 7,022.31