Finding the Fourth Proportional to 10,644.89, 14,689.86 and 6,168.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,644.89 : 14,689.86 = 6,168.54 : x
2. Step 2: Convert to fraction form
   10,644.89/14,689.86 = 6,168.54/x
3. Step 3: Cross multiply
   10,644.89x = 14,689.86 × 6,168.54
4. Step 4: Simplify right side
   10,644.89x = 90,614,989.00
5. Step 5: Solve for x
   x = 90,614,989.00/10,644.89
6. Step 6: Final answer
   x = 8,512.54