Finding the Fourth Proportional to 21,224.05, 31,849.89 and 8,076.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,224.05 : 31,849.89 = 8,076.54 : x
2. Step 2: Convert to fraction form
   21,224.05/31,849.89 = 8,076.54/x
3. Step 3: Cross multiply
   21,224.05x = 31,849.89 × 8,076.54
4. Step 4: Simplify right side
   21,224.05x = 257,236,910.58
5. Step 5: Solve for x
   x = 257,236,910.58/21,224.05
6. Step 6: Final answer
   x = 12,120.07