Finding the Fourth Proportional to 8,072.88, 12,114.60 and 3,456.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,072.88 : 12,114.60 = 3,456.24 : x
2. Step 2: Convert to fraction form
   8,072.88/12,114.60 = 3,456.24/x
3. Step 3: Cross multiply
   8,072.88x = 12,114.60 × 3,456.24
4. Step 4: Simplify right side
   8,072.88x = 41,870,965.10
5. Step 5: Solve for x
   x = 41,870,965.10/8,072.88
6. Step 6: Final answer
   x = 5,186.62