Finding the Fourth Proportional to 8,165.66, 12,243.02 and 3,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,165.66 : 12,243.02 = 3,780.72 : x
2. Step 2: Convert to fraction form
   8,165.66/12,243.02 = 3,780.72/x
3. Step 3: Cross multiply
   8,165.66x = 12,243.02 × 3,780.72
4. Step 4: Simplify right side
   8,165.66x = 46,287,411.67
5. Step 5: Solve for x
   x = 46,287,411.67/8,165.66
6. Step 6: Final answer
   x = 5,668.55