Finding the Fourth Proportional to 9,520.72, 13,138.52 and 5,329.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.72 : 13,138.52 = 5,329.04 : x
2. Step 2: Convert to fraction form
   9,520.72/13,138.52 = 5,329.04/x
3. Step 3: Cross multiply
   9,520.72x = 13,138.52 × 5,329.04
4. Step 4: Simplify right side
   9,520.72x = 70,015,698.62
5. Step 5: Solve for x
   x = 70,015,698.62/9,520.72
6. Step 6: Final answer
   x = 7,354.03