Finding the Fourth Proportional to 21,792.57, 30,073.71 and 12,361.13

Step by Step Solution

1. Step 1: Write the proportion equation
   21,792.57 : 30,073.71 = 12,361.13 : x
2. Step 2: Convert to fraction form
   21,792.57/30,073.71 = 12,361.13/x
3. Step 3: Cross multiply
   21,792.57x = 30,073.71 × 12,361.13
4. Step 4: Simplify right side
   21,792.57x = 371,745,038.89
5. Step 5: Solve for x
   x = 371,745,038.89/21,792.57
6. Step 6: Final answer
   x = 17,058.34