Finding the Fourth Proportional to 8,123.16, 12,185.97 and 3,443.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.16 : 12,185.97 = 3,443.19 : x
2. Step 2: Convert to fraction form
   8,123.16/12,185.97 = 3,443.19/x
3. Step 3: Cross multiply
   8,123.16x = 12,185.97 × 3,443.19
4. Step 4: Simplify right side
   8,123.16x = 41,958,610.04
5. Step 5: Solve for x
   x = 41,958,610.04/8,123.16
6. Step 6: Final answer
   x = 5,165.31