Finding the Fourth Proportional to 9,408.15, 12,983.25 and 5,631.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.15 : 12,983.25 = 5,631.48 : x
2. Step 2: Convert to fraction form
   9,408.15/12,983.25 = 5,631.48/x
3. Step 3: Cross multiply
   9,408.15x = 12,983.25 × 5,631.48
4. Step 4: Simplify right side
   9,408.15x = 73,114,912.71
5. Step 5: Solve for x
   x = 73,114,912.71/9,408.15
6. Step 6: Final answer
   x = 7,771.44