Finding the Fourth Proportional to 21,984.98, 30,339.42 and 13,037

Step by Step Solution

1. Step 1: Write the proportion equation
   21,984.98 : 30,339.42 = 13,037 : x
2. Step 2: Convert to fraction form
   21,984.98/30,339.42 = 13,037/x
3. Step 3: Cross multiply
   21,984.98x = 30,339.42 × 13,037
4. Step 4: Simplify right side
   21,984.98x = 395,535,018.54
5. Step 5: Solve for x
   x = 395,535,018.54/21,984.98
6. Step 6: Final answer
   x = 17,991.15