Finding the Fourth Proportional to 9,408.39, 12,983.00 and 5,216.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.39 : 12,983.00 = 5,216.64 : x
2. Step 2: Convert to fraction form
   9,408.39/12,983.00 = 5,216.64/x
3. Step 3: Cross multiply
   9,408.39x = 12,983.00 × 5,216.64
4. Step 4: Simplify right side
   9,408.39x = 67,727,611.04
5. Step 5: Solve for x
   x = 67,727,611.04/9,408.39
6. Step 6: Final answer
   x = 7,198.64