Finding the Fourth Proportional to 3,574.32, 5,318.22 and 3,485.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.32 : 5,318.22 = 3,485.04 : x
2. Step 2: Convert to fraction form
   3,574.32/5,318.22 = 3,485.04/x
3. Step 3: Cross multiply
   3,574.32x = 5,318.22 × 3,485.04
4. Step 4: Simplify right side
   3,574.32x = 18,534,209.43
5. Step 5: Solve for x
   x = 18,534,209.43/3,574.32
6. Step 6: Final answer
   x = 5,185.38