Finding the Fourth Proportional to 8,426.59, 12,644.43 and 3,499.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.59 : 12,644.43 = 3,499.63 : x
2. Step 2: Convert to fraction form
   8,426.59/12,644.43 = 3,499.63/x
3. Step 3: Cross multiply
   8,426.59x = 12,644.43 × 3,499.63
4. Step 4: Simplify right side
   8,426.59x = 44,250,826.56
5. Step 5: Solve for x
   x = 44,250,826.56/8,426.59
6. Step 6: Final answer
   x = 5,251.33