Finding the Fourth Proportional to 11,017.33, 16,519.78 and 3,619.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,017.33 : 16,519.78 = 3,619.80 : x
2. Step 2: Convert to fraction form
   11,017.33/16,519.78 = 3,619.80/x
3. Step 3: Cross multiply
   11,017.33x = 16,519.78 × 3,619.80
4. Step 4: Simplify right side
   11,017.33x = 59,798,304.17
5. Step 5: Solve for x
   x = 59,798,304.17/11,017.33
6. Step 6: Final answer
   x = 5,427.66