Finding the Fourth Proportional to 21,983.34, 30,329.82 and 14,028.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983.34 : 30,329.82 = 14,028.15 : x
2. Step 2: Convert to fraction form
   21,983.34/30,329.82 = 14,028.15/x
3. Step 3: Cross multiply
   21,983.34x = 30,329.82 × 14,028.15
4. Step 4: Simplify right side
   21,983.34x = 425,471,264.43
5. Step 5: Solve for x
   x = 425,471,264.43/21,983.34
6. Step 6: Final answer
   x = 19,354.26