Finding the Fourth Proportional to 8,426.30, 12,622.53 and 4,196.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.30 : 12,622.53 = 4,196.81 : x
2. Step 2: Convert to fraction form
   8,426.30/12,622.53 = 4,196.81/x
3. Step 3: Cross multiply
   8,426.30x = 12,622.53 × 4,196.81
4. Step 4: Simplify right side
   8,426.30x = 52,974,297.02
5. Step 5: Solve for x
   x = 52,974,297.02/8,426.30
6. Step 6: Final answer
   x = 6,286.78