Finding the Fourth Proportional to 21,227.72, 29,430.38 and 20,046.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,227.72 : 29,430.38 = 20,046.74 : x
2. Step 2: Convert to fraction form
   21,227.72/29,430.38 = 20,046.74/x
3. Step 3: Cross multiply
   21,227.72x = 29,430.38 × 20,046.74
4. Step 4: Simplify right side
   21,227.72x = 589,983,103.52
5. Step 5: Solve for x
   x = 589,983,103.52/21,227.72
6. Step 6: Final answer
   x = 27,793.05