Finding the Fourth Proportional to 8,040.18, 12,077.55 and 5,966.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,040.18 : 12,077.55 = 5,966.58 : x
2. Step 2: Convert to fraction form
   8,040.18/12,077.55 = 5,966.58/x
3. Step 3: Cross multiply
   8,040.18x = 12,077.55 × 5,966.58
4. Step 4: Simplify right side
   8,040.18x = 72,061,668.28
5. Step 5: Solve for x
   x = 72,061,668.28/8,040.18
6. Step 6: Final answer
   x = 8,962.69