Finding the Fourth Proportional to 9,408.52, 12,982.98 and 5,159.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,408.52 : 12,982.98 = 5,159.50 : x
2. Step 2: Convert to fraction form
   9,408.52/12,982.98 = 5,159.50/x
3. Step 3: Cross multiply
   9,408.52x = 12,982.98 × 5,159.50
4. Step 4: Simplify right side
   9,408.52x = 66,985,685.31
5. Step 5: Solve for x
   x = 66,985,685.31/9,408.52
6. Step 6: Final answer
   x = 7,119.68