Finding the Fourth Proportional to 11,419.01, 17,112.41 and 5,408.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,419.01 : 17,112.41 = 5,408.71 : x
2. Step 2: Convert to fraction form
   11,419.01/17,112.41 = 5,408.71/x
3. Step 3: Cross multiply
   11,419.01x = 17,112.41 × 5,408.71
4. Step 4: Simplify right side
   11,419.01x = 92,556,063.09
5. Step 5: Solve for x
   x = 92,556,063.09/11,419.01
6. Step 6: Final answer
   x = 8,105.44