Finding the Fourth Proportional to 8,573.91, 12,868.17 and 3,383.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573.91 : 12,868.17 = 3,383.43 : x
2. Step 2: Convert to fraction form
   8,573.91/12,868.17 = 3,383.43/x
3. Step 3: Cross multiply
   8,573.91x = 12,868.17 × 3,383.43
4. Step 4: Simplify right side
   8,573.91x = 43,538,552.42
5. Step 5: Solve for x
   x = 43,538,552.42/8,573.91
6. Step 6: Final answer
   x = 5,078.03