Finding the Fourth Proportional to 11,400.84, 17,103.78 and 3,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,400.84 : 17,103.78 = 3,609.42 : x
2. Step 2: Convert to fraction form
   11,400.84/17,103.78 = 3,609.42/x
3. Step 3: Cross multiply
   11,400.84x = 17,103.78 × 3,609.42
4. Step 4: Simplify right side
   11,400.84x = 61,734,725.61
5. Step 5: Solve for x
   x = 61,734,725.61/11,400.84
6. Step 6: Final answer
   x = 5,414.93