Finding the Fourth Proportional to 3,574.56, 5,331.72 and 3,465.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.56 : 5,331.72 = 3,465.21 : x
2. Step 2: Convert to fraction form
   3,574.56/5,331.72 = 3,465.21/x
3. Step 3: Cross multiply
   3,574.56x = 5,331.72 × 3,465.21
4. Step 4: Simplify right side
   3,574.56x = 18,475,529.46
5. Step 5: Solve for x
   x = 18,475,529.46/3,574.56
6. Step 6: Final answer
   x = 5,168.62