Finding the Fourth Proportional to 7,524.72, 11,271.72 and 3,423.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,524.72 : 11,271.72 = 3,423.60 : x
2. Step 2: Convert to fraction form
   7,524.72/11,271.72 = 3,423.60/x
3. Step 3: Cross multiply
   7,524.72x = 11,271.72 × 3,423.60
4. Step 4: Simplify right side
   7,524.72x = 38,589,860.59
5. Step 5: Solve for x
   x = 38,589,860.59/7,524.72
6. Step 6: Final answer
   x = 5,128.41