Finding the Fourth Proportional to 21,821.04, 30,105 and 14,736.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,821.04 : 30,105 = 14,736.24 : x
2. Step 2: Convert to fraction form
   21,821.04/30,105 = 14,736.24/x
3. Step 3: Cross multiply
   21,821.04x = 30,105 × 14,736.24
4. Step 4: Simplify right side
   21,821.04x = 443,634,505.20
5. Step 5: Solve for x
   x = 443,634,505.20/21,821.04
6. Step 6: Final answer
   x = 20,330.58