Finding the Fourth Proportional to 10,659.79, 14,710.56 and 5,879.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,659.79 : 14,710.56 = 5,879.90 : x
2. Step 2: Convert to fraction form
   10,659.79/14,710.56 = 5,879.90/x
3. Step 3: Cross multiply
   10,659.79x = 14,710.56 × 5,879.90
4. Step 4: Simplify right side
   10,659.79x = 86,496,586.80
5. Step 5: Solve for x
   x = 86,496,586.80/10,659.79
6. Step 6: Final answer
   x = 8,114.29