Finding the Fourth Proportional to 21,824.72, 30,135.88 and 17,792.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,824.72 : 30,135.88 = 17,792.18 : x
2. Step 2: Convert to fraction form
   21,824.72/30,135.88 = 17,792.18/x
3. Step 3: Cross multiply
   21,824.72x = 30,135.88 × 17,792.18
4. Step 4: Simplify right side
   21,824.72x = 536,183,001.42
5. Step 5: Solve for x
   x = 536,183,001.42/21,824.72
6. Step 6: Final answer
   x = 24,567.69