Finding the Fourth Proportional to 9,520.12, 13,137.76 and 5,328.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.12 : 13,137.76 = 5,328.37 : x
2. Step 2: Convert to fraction form
   9,520.12/13,137.76 = 5,328.37/x
3. Step 3: Cross multiply
   9,520.12x = 13,137.76 × 5,328.37
4. Step 4: Simplify right side
   9,520.12x = 70,002,846.25
5. Step 5: Solve for x
   x = 70,002,846.25/9,520.12
6. Step 6: Final answer
   x = 7,353.15