Finding the Fourth Proportional to 21,796.21, 32,644.90 and 21,304.14

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796.21 : 32,644.90 = 21,304.14 : x
2. Step 2: Convert to fraction form
   21,796.21/32,644.90 = 21,304.14/x
3. Step 3: Cross multiply
   21,796.21x = 32,644.90 × 21,304.14
4. Step 4: Simplify right side
   21,796.21x = 695,471,519.89
5. Step 5: Solve for x
   x = 695,471,519.89/21,796.21
6. Step 6: Final answer
   x = 31,907.91