Finding the Fourth Proportional to 17,320.59, 23,902.67 and 9,767.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,320.59 : 23,902.67 = 9,767.28 : x
2. Step 2: Convert to fraction form
   17,320.59/23,902.67 = 9,767.28/x
3. Step 3: Cross multiply
   17,320.59x = 23,902.67 × 9,767.28
4. Step 4: Simplify right side
   17,320.59x = 233,464,021.80
5. Step 5: Solve for x
   x = 233,464,021.80/17,320.59
6. Step 6: Final answer
   x = 13,478.99