Finding the Fourth Proportional to 3,933.63, 5,404.12 and 3,519.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.63 : 5,404.12 = 3,519.46 : x
2. Step 2: Convert to fraction form
   3,933.63/5,404.12 = 3,519.46/x
3. Step 3: Cross multiply
   3,933.63x = 5,404.12 × 3,519.46
4. Step 4: Simplify right side
   3,933.63x = 19,019,582.13
5. Step 5: Solve for x
   x = 19,019,582.13/3,933.63
6. Step 6: Final answer
   x = 4,835.12