Finding the Fourth Proportional to 3,404.32, 5,081.78 and 3,355.11

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.32 : 5,081.78 = 3,355.11 : x
2. Step 2: Convert to fraction form
   3,404.32/5,081.78 = 3,355.11/x
3. Step 3: Cross multiply
   3,404.32x = 5,081.78 × 3,355.11
4. Step 4: Simplify right side
   3,404.32x = 17,049,939.28
5. Step 5: Solve for x
   x = 17,049,939.28/3,404.32
6. Step 6: Final answer
   x = 5,008.33