Finding the Fourth Proportional to 21,821.34, 30,114.73 and 16,434.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,821.34 : 30,114.73 = 16,434.27 : x
2. Step 2: Convert to fraction form
   21,821.34/30,114.73 = 16,434.27/x
3. Step 3: Cross multiply
   21,821.34x = 30,114.73 × 16,434.27
4. Step 4: Simplify right side
   21,821.34x = 494,913,603.80
5. Step 5: Solve for x
   x = 494,913,603.80/21,821.34
6. Step 6: Final answer
   x = 22,680.26