Finding the Fourth Proportional to 10,680.78, 14,739.69 and 5,965.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,680.78 : 14,739.69 = 5,965.06 : x
2. Step 2: Convert to fraction form
   10,680.78/14,739.69 = 5,965.06/x
3. Step 3: Cross multiply
   10,680.78x = 14,739.69 × 5,965.06
4. Step 4: Simplify right side
   10,680.78x = 87,923,135.23
5. Step 5: Solve for x
   x = 87,923,135.23/10,680.78
6. Step 6: Final answer
   x = 8,231.90