Finding the Fourth Proportional to 8,426.43, 12,622.72 and 4,196.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.43 : 12,622.72 = 4,196.93 : x
2. Step 2: Convert to fraction form
   8,426.43/12,622.72 = 4,196.93/x
3. Step 3: Cross multiply
   8,426.43x = 12,622.72 × 4,196.93
4. Step 4: Simplify right side
   8,426.43x = 52,976,672.25
5. Step 5: Solve for x
   x = 52,976,672.25/8,426.43
6. Step 6: Final answer
   x = 6,286.97