Finding the Fourth Proportional to 11,819.32, 17,728.94 and 3,499.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,819.32 : 17,728.94 = 3,499.39 : x
2. Step 2: Convert to fraction form
   11,819.32/17,728.94 = 3,499.39/x
3. Step 3: Cross multiply
   11,819.32x = 17,728.94 × 3,499.39
4. Step 4: Simplify right side
   11,819.32x = 62,040,369.20
5. Step 5: Solve for x
   x = 62,040,369.20/11,819.32
6. Step 6: Final answer
   x = 5,249.07