Finding the Fourth Proportional to 8,426.37, 12,642.83 and 3,494.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.37 : 12,642.83 = 3,494.75 : x
2. Step 2: Convert to fraction form
   8,426.37/12,642.83 = 3,494.75/x
3. Step 3: Cross multiply
   8,426.37x = 12,642.83 × 3,494.75
4. Step 4: Simplify right side
   8,426.37x = 44,183,530.14
5. Step 5: Solve for x
   x = 44,183,530.14/8,426.37
6. Step 6: Final answer
   x = 5,243.48