Finding the Fourth Proportional to 9,408.73, 12,983.85 and 5,216.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.73 : 12,983.85 = 5,216.98 : x
2. Step 2: Convert to fraction form
   9,408.73/12,983.85 = 5,216.98/x
3. Step 3: Cross multiply
   9,408.73x = 12,983.85 × 5,216.98
4. Step 4: Simplify right side
   9,408.73x = 67,736,485.77
5. Step 5: Solve for x
   x = 67,736,485.77/9,408.73
6. Step 6: Final answer
   x = 7,199.32