Finding the Fourth Proportional to 8,659.91, 11,942.83 and 5,674.66

Step by Step Solution

1. Step 1: Write the proportion equation
   8,659.91 : 11,942.83 = 5,674.66 : x
2. Step 2: Convert to fraction form
   8,659.91/11,942.83 = 5,674.66/x
3. Step 3: Cross multiply
   8,659.91x = 11,942.83 × 5,674.66
4. Step 4: Simplify right side
   8,659.91x = 67,771,499.69
5. Step 5: Solve for x
   x = 67,771,499.69/8,659.91
6. Step 6: Final answer
   x = 7,825.89