Finding the Fourth Proportional to 9,280.17, 12,806.60 and 5,088.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.17 : 12,806.60 = 5,088.42 : x
2. Step 2: Convert to fraction form
   9,280.17/12,806.60 = 5,088.42/x
3. Step 3: Cross multiply
   9,280.17x = 12,806.60 × 5,088.42
4. Step 4: Simplify right side
   9,280.17x = 65,165,334.13
5. Step 5: Solve for x
   x = 65,165,334.13/9,280.17
6. Step 6: Final answer
   x = 7,022.00