Finding the Fourth Proportional to 17,168.72, 23,695.80 and 9,716.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,168.72 : 23,695.80 = 9,716.72 : x
2. Step 2: Convert to fraction form
   17,168.72/23,695.80 = 9,716.72/x
3. Step 3: Cross multiply
   17,168.72x = 23,695.80 × 9,716.72
4. Step 4: Simplify right side
   17,168.72x = 230,245,453.78
5. Step 5: Solve for x
   x = 230,245,453.78/17,168.72
6. Step 6: Final answer
   x = 13,410.75