Finding the Fourth Proportional to 7,528.98, 10,389.56 and 4,171.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,528.98 : 10,389.56 = 4,171.60 : x
2. Step 2: Convert to fraction form
   7,528.98/10,389.56 = 4,171.60/x
3. Step 3: Cross multiply
   7,528.98x = 10,389.56 × 4,171.60
4. Step 4: Simplify right side
   7,528.98x = 43,341,015.69
5. Step 5: Solve for x
   x = 43,341,015.69/7,528.98
6. Step 6: Final answer
   x = 5,756.56