Finding the Fourth Proportional to 10,665.50, 14,718.39 and 5,949.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.50 : 14,718.39 = 5,949.78 : x
2. Step 2: Convert to fraction form
   10,665.50/14,718.39 = 5,949.78/x
3. Step 3: Cross multiply
   10,665.50x = 14,718.39 × 5,949.78
4. Step 4: Simplify right side
   10,665.50x = 87,571,182.45
5. Step 5: Solve for x
   x = 87,571,182.45/10,665.50
6. Step 6: Final answer
   x = 8,210.70