Finding the Fourth Proportional to 21,315.48, 29,414.78 and 12,362.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,315.48 : 29,414.78 = 12,362.41 : x
2. Step 2: Convert to fraction form
   21,315.48/29,414.78 = 12,362.41/x
3. Step 3: Cross multiply
   21,315.48x = 29,414.78 × 12,362.41
4. Step 4: Simplify right side
   21,315.48x = 363,637,570.42
5. Step 5: Solve for x
   x = 363,637,570.42/21,315.48
6. Step 6: Final answer
   x = 17,059.79