Finding the Fourth Proportional to 21,846.22, 30,147.75 and 12,414.79

Step by Step Solution

1. Step 1: Write the proportion equation
   21,846.22 : 30,147.75 = 12,414.79 : x
2. Step 2: Convert to fraction form
   21,846.22/30,147.75 = 12,414.79/x
3. Step 3: Cross multiply
   21,846.22x = 30,147.75 × 12,414.79
4. Step 4: Simplify right side
   21,846.22x = 374,277,985.22
5. Step 5: Solve for x
   x = 374,277,985.22/21,846.22
6. Step 6: Final answer
   x = 17,132.39