Finding the Fourth Proportional to 21,784.57, 30,062.71 and 14,243.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,784.57 : 30,062.71 = 14,243.52 : x
2. Step 2: Convert to fraction form
   21,784.57/30,062.71 = 14,243.52/x
3. Step 3: Cross multiply
   21,784.57x = 30,062.71 × 14,243.52
4. Step 4: Simplify right side
   21,784.57x = 428,198,797.04
5. Step 5: Solve for x
   x = 428,198,797.04/21,784.57
6. Step 6: Final answer
   x = 19,656.06