Finding the Fourth Proportional to 9,408.48, 12,983.50 and 5,429.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.48 : 12,983.50 = 5,429.32 : x
2. Step 2: Convert to fraction form
   9,408.48/12,983.50 = 5,429.32/x
3. Step 3: Cross multiply
   9,408.48x = 12,983.50 × 5,429.32
4. Step 4: Simplify right side
   9,408.48x = 70,491,576.22
5. Step 5: Solve for x
   x = 70,491,576.22/9,408.48
6. Step 6: Final answer
   x = 7,492.34