Finding the Fourth Proportional to 8,417.39, 12,621.04 and 3,976.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,417.39 : 12,621.04 = 3,976.18 : x
2. Step 2: Convert to fraction form
   8,417.39/12,621.04 = 3,976.18/x
3. Step 3: Cross multiply
   8,417.39x = 12,621.04 × 3,976.18
4. Step 4: Simplify right side
   8,417.39x = 50,183,485.33
5. Step 5: Solve for x
   x = 50,183,485.33/8,417.39
6. Step 6: Final answer
   x = 5,961.89