Finding the Fourth Proportional to 8,443.84, 12,663.60 and 3,997.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.84 : 12,663.60 = 3,997.12 : x
2. Step 2: Convert to fraction form
   8,443.84/12,663.60 = 3,997.12/x
3. Step 3: Cross multiply
   8,443.84x = 12,663.60 × 3,997.12
4. Step 4: Simplify right side
   8,443.84x = 50,617,928.83
5. Step 5: Solve for x
   x = 50,617,928.83/8,443.84
6. Step 6: Final answer
   x = 5,994.66