Finding the Fourth Proportional to 10,665.78, 14,718.78 and 5,949.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.78 : 14,718.78 = 5,949.96 : x
2. Step 2: Convert to fraction form
   10,665.78/14,718.78 = 5,949.96/x
3. Step 3: Cross multiply
   10,665.78x = 14,718.78 × 5,949.96
4. Step 4: Simplify right side
   10,665.78x = 87,576,152.25
5. Step 5: Solve for x
   x = 87,576,152.25/10,665.78
6. Step 6: Final answer
   x = 8,210.95