Finding the Fourth Proportional to 11,408.64, 17,114.59 and 3,511.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,408.64 : 17,114.59 = 3,511.81 : x
2. Step 2: Convert to fraction form
   11,408.64/17,114.59 = 3,511.81/x
3. Step 3: Cross multiply
   11,408.64x = 17,114.59 × 3,511.81
4. Step 4: Simplify right side
   11,408.64x = 60,103,188.31
5. Step 5: Solve for x
   x = 60,103,188.31/11,408.64
6. Step 6: Final answer
   x = 5,268.22