Finding the Fourth Proportional to 8,441.34, 12,659.85 and 3,994.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,441.34 : 12,659.85 = 3,994.62 : x
2. Step 2: Convert to fraction form
   8,441.34/12,659.85 = 3,994.62/x
3. Step 3: Cross multiply
   8,441.34x = 12,659.85 × 3,994.62
4. Step 4: Simplify right side
   8,441.34x = 50,571,290.01
5. Step 5: Solve for x
   x = 50,571,290.01/8,441.34
6. Step 6: Final answer
   x = 5,990.91