Finding the Fourth Proportional to 17,222.69, 25,809.98 and 9,308.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,222.69 : 25,809.98 = 9,308.15 : x
2. Step 2: Convert to fraction form
   17,222.69/25,809.98 = 9,308.15/x
3. Step 3: Cross multiply
   17,222.69x = 25,809.98 × 9,308.15
4. Step 4: Simplify right side
   17,222.69x = 240,242,989.75
5. Step 5: Solve for x
   x = 240,242,989.75/17,222.69
6. Step 6: Final answer
   x = 13,949.21