Finding the Fourth Proportional to 9,456.89, 14,168.48 and 5,757.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,456.89 : 14,168.48 = 5,757.21 : x
2. Step 2: Convert to fraction form
   9,456.89/14,168.48 = 5,757.21/x
3. Step 3: Cross multiply
   9,456.89x = 14,168.48 × 5,757.21
4. Step 4: Simplify right side
   9,456.89x = 81,570,885.95
5. Step 5: Solve for x
   x = 81,570,885.95/9,456.89
6. Step 6: Final answer
   x = 8,625.56