Finding the Fourth Proportional to 21,983.98, 30,338.04 and 13,036

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983.98 : 30,338.04 = 13,036 : x
2. Step 2: Convert to fraction form
   21,983.98/30,338.04 = 13,036/x
3. Step 3: Cross multiply
   21,983.98x = 30,338.04 × 13,036
4. Step 4: Simplify right side
   21,983.98x = 395,486,689.44
5. Step 5: Solve for x
   x = 395,486,689.44/21,983.98
6. Step 6: Final answer
   x = 17,989.77