Finding the Fourth Proportional to 8,065.76, 12,072.56 and 4,164.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,065.76 : 12,072.56 = 4,164.80 : x
2. Step 2: Convert to fraction form
   8,065.76/12,072.56 = 4,164.80/x
3. Step 3: Cross multiply
   8,065.76x = 12,072.56 × 4,164.80
4. Step 4: Simplify right side
   8,065.76x = 50,279,797.89
5. Step 5: Solve for x
   x = 50,279,797.89/8,065.76
6. Step 6: Final answer
   x = 6,233.73