Finding the Fourth Proportional to 3,561.24, 5,342.82 and 3,218.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.24 : 5,342.82 = 3,218.52 : x
2. Step 2: Convert to fraction form
   3,561.24/5,342.82 = 3,218.52/x
3. Step 3: Cross multiply
   3,561.24x = 5,342.82 × 3,218.52
4. Step 4: Simplify right side
   3,561.24x = 17,195,973.03
5. Step 5: Solve for x
   x = 17,195,973.03/3,561.24
6. Step 6: Final answer
   x = 4,828.65