Finding the Fourth Proportional to 8,261.12, 12,395.31 and 3,340.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,261.12 : 12,395.31 = 3,340.37 : x
2. Step 2: Convert to fraction form
   8,261.12/12,395.31 = 3,340.37/x
3. Step 3: Cross multiply
   8,261.12x = 12,395.31 × 3,340.37
4. Step 4: Simplify right side
   8,261.12x = 41,404,921.66
5. Step 5: Solve for x
   x = 41,404,921.66/8,261.12
6. Step 6: Final answer
   x = 5,012.02