Finding the Fourth Proportional to 8,419.17, 12,627.40 and 3,976.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,419.17 : 12,627.40 = 3,976.83 : x
2. Step 2: Convert to fraction form
   8,419.17/12,627.40 = 3,976.83/x
3. Step 3: Cross multiply
   8,419.17x = 12,627.40 × 3,976.83
4. Step 4: Simplify right side
   8,419.17x = 50,216,940.12
5. Step 5: Solve for x
   x = 50,216,940.12/8,419.17
6. Step 6: Final answer
   x = 5,964.60