Finding the Fourth Proportional to 9,414.59, 12,986.73 and 5,871.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.59 : 12,986.73 = 5,871.65 : x
2. Step 2: Convert to fraction form
   9,414.59/12,986.73 = 5,871.65/x
3. Step 3: Cross multiply
   9,414.59x = 12,986.73 × 5,871.65
4. Step 4: Simplify right side
   9,414.59x = 76,253,468.27
5. Step 5: Solve for x
   x = 76,253,468.27/9,414.59
6. Step 6: Final answer
   x = 8,099.50