Finding the Fourth Proportional to 7,528.72, 10,389.50 and 4,171.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,528.72 : 10,389.50 = 4,171.52 : x
2. Step 2: Convert to fraction form
   7,528.72/10,389.50 = 4,171.52/x
3. Step 3: Cross multiply
   7,528.72x = 10,389.50 × 4,171.52
4. Step 4: Simplify right side
   7,528.72x = 43,340,027.80
5. Step 5: Solve for x
   x = 43,340,027.80/7,528.72
6. Step 6: Final answer
   x = 5,756.63