Finding the Fourth Proportional to 6,111.18, 8,436.49 and 3,960.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.18 : 8,436.49 = 3,960.29 : x
2. Step 2: Convert to fraction form
   6,111.18/8,436.49 = 3,960.29/x
3. Step 3: Cross multiply
   6,111.18x = 8,436.49 × 3,960.29
4. Step 4: Simplify right side
   6,111.18x = 33,410,958.17
5. Step 5: Solve for x
   x = 33,410,958.17/6,111.18
6. Step 6: Final answer
   x = 5,467.19