Finding the Fourth Proportional to 9,408.50, 12,983.82 and 5,216.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.50 : 12,983.82 = 5,216.84 : x
2. Step 2: Convert to fraction form
   9,408.50/12,983.82 = 5,216.84/x
3. Step 3: Cross multiply
   9,408.50x = 12,983.82 × 5,216.84
4. Step 4: Simplify right side
   9,408.50x = 67,734,511.53
5. Step 5: Solve for x
   x = 67,734,511.53/9,408.50
6. Step 6: Final answer
   x = 7,199.29