Finding the Fourth Proportional to 11,408.42, 17,111.42 and 3,616.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,408.42 : 17,111.42 = 3,616.62 : x
2. Step 2: Convert to fraction form
   11,408.42/17,111.42 = 3,616.62/x
3. Step 3: Cross multiply
   11,408.42x = 17,111.42 × 3,616.62
4. Step 4: Simplify right side
   11,408.42x = 61,885,503.80
5. Step 5: Solve for x
   x = 61,885,503.80/11,408.42
6. Step 6: Final answer
   x = 5,424.55