Finding the Fourth Proportional to 3,543.72, 5,287.94 and 3,523.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,543.72 : 5,287.94 = 3,523.32 : x
2. Step 2: Convert to fraction form
   3,543.72/5,287.94 = 3,523.32/x
3. Step 3: Cross multiply
   3,543.72x = 5,287.94 × 3,523.32
4. Step 4: Simplify right side
   3,543.72x = 18,631,087.14
5. Step 5: Solve for x
   x = 18,631,087.14/3,543.72
6. Step 6: Final answer
   x = 5,257.49