Finding the Fourth Proportional to 21,792.29, 30,076.81 and 13,296.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,792.29 : 30,076.81 = 13,296.27 : x
2. Step 2: Convert to fraction form
   21,792.29/30,076.81 = 13,296.27/x
3. Step 3: Cross multiply
   21,792.29x = 30,076.81 × 13,296.27
4. Step 4: Simplify right side
   21,792.29x = 399,909,353.26
5. Step 5: Solve for x
   x = 399,909,353.26/21,792.29
6. Step 6: Final answer
   x = 18,350.95