Finding the Fourth Proportional to 11,320.14, 16,969.82 and 3,919.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,320.14 : 16,969.82 = 3,919.42 : x
2. Step 2: Convert to fraction form
   11,320.14/16,969.82 = 3,919.42/x
3. Step 3: Cross multiply
   11,320.14x = 16,969.82 × 3,919.42
4. Step 4: Simplify right side
   11,320.14x = 66,511,851.90
5. Step 5: Solve for x
   x = 66,511,851.90/11,320.14
6. Step 6: Final answer
   x = 5,875.53