Finding the Fourth Proportional to 8,814.30, 12,165.88 and 5,986.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,814.30 : 12,165.88 = 5,986.40 : x
2. Step 2: Convert to fraction form
   8,814.30/12,165.88 = 5,986.40/x
3. Step 3: Cross multiply
   8,814.30x = 12,165.88 × 5,986.40
4. Step 4: Simplify right side
   8,814.30x = 72,829,824.03
5. Step 5: Solve for x
   x = 72,829,824.03/8,814.30
6. Step 6: Final answer
   x = 8,262.69