Finding the Fourth Proportional to 21,982.84, 30,338.49 and 12,552.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,982.84 : 30,338.49 = 12,552.82 : x
2. Step 2: Convert to fraction form
   21,982.84/30,338.49 = 12,552.82/x
3. Step 3: Cross multiply
   21,982.84x = 30,338.49 × 12,552.82
4. Step 4: Simplify right side
   21,982.84x = 380,833,604.04
5. Step 5: Solve for x
   x = 380,833,604.04/21,982.84
6. Step 6: Final answer
   x = 17,324.13