Finding the Fourth Proportional to 17,168.16, 25,719.56 and 9,777.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,168.16 : 25,719.56 = 9,777.72 : x
2. Step 2: Convert to fraction form
   17,168.16/25,719.56 = 9,777.72/x
3. Step 3: Cross multiply
   17,168.16x = 25,719.56 × 9,777.72
4. Step 4: Simplify right side
   17,168.16x = 251,478,607.31
5. Step 5: Solve for x
   x = 251,478,607.31/17,168.16
6. Step 6: Final answer
   x = 14,647.97