Finding the Fourth Proportional to 11,408.15, 17,113.85 and 3,511.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,408.15 : 17,113.85 = 3,511.32 : x
2. Step 2: Convert to fraction form
   11,408.15/17,113.85 = 3,511.32/x
3. Step 3: Cross multiply
   11,408.15x = 17,113.85 × 3,511.32
4. Step 4: Simplify right side
   11,408.15x = 60,092,186.23
5. Step 5: Solve for x
   x = 60,092,186.23/11,408.15
6. Step 6: Final answer
   x = 5,267.48