Finding the Fourth Proportional to 7,057.72, 10,573.50 and 3,543.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,057.72 : 10,573.50 = 3,543.60 : x
2. Step 2: Convert to fraction form
   7,057.72/10,573.50 = 3,543.60/x
3. Step 3: Cross multiply
   7,057.72x = 10,573.50 × 3,543.60
4. Step 4: Simplify right side
   7,057.72x = 37,468,254.60
5. Step 5: Solve for x
   x = 37,468,254.60/7,057.72
6. Step 6: Final answer
   x = 5,308.83