Finding the Fourth Proportional to 21,752.31, 30,020.31 and 12,193.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,752.31 : 30,020.31 = 12,193.83 : x
2. Step 2: Convert to fraction form
   21,752.31/30,020.31 = 12,193.83/x
3. Step 3: Cross multiply
   21,752.31x = 30,020.31 × 12,193.83
4. Step 4: Simplify right side
   21,752.31x = 366,062,556.69
5. Step 5: Solve for x
   x = 366,062,556.69/21,752.31
6. Step 6: Final answer
   x = 16,828.68