Finding the Fourth Proportional to 8,441.09, 12,659.48 and 3,994.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,441.09 : 12,659.48 = 3,994.37 : x
2. Step 2: Convert to fraction form
   8,441.09/12,659.48 = 3,994.37/x
3. Step 3: Cross multiply
   8,441.09x = 12,659.48 × 3,994.37
4. Step 4: Simplify right side
   8,441.09x = 50,566,627.16
5. Step 5: Solve for x
   x = 50,566,627.16/8,441.09
6. Step 6: Final answer
   x = 5,990.53