Finding the Fourth Proportional to 21,796.21, 30,087.81 and 14,732.20

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796.21 : 30,087.81 = 14,732.20 : x
2. Step 2: Convert to fraction form
   21,796.21/30,087.81 = 14,732.20/x
3. Step 3: Cross multiply
   21,796.21x = 30,087.81 × 14,732.20
4. Step 4: Simplify right side
   21,796.21x = 443,259,410.38
5. Step 5: Solve for x
   x = 443,259,410.38/21,796.21
6. Step 6: Final answer
   x = 20,336.54