Finding the Fourth Proportional to 20,144.72, 30,214.29 and 5,354.84

Step by Step Solution

1. Step 1: Write the proportion equation
   20,144.72 : 30,214.29 = 5,354.84 : x
2. Step 2: Convert to fraction form
   20,144.72/30,214.29 = 5,354.84/x
3. Step 3: Cross multiply
   20,144.72x = 30,214.29 × 5,354.84
4. Step 4: Simplify right side
   20,144.72x = 161,792,784.28
5. Step 5: Solve for x
   x = 161,792,784.28/20,144.72
6. Step 6: Final answer
   x = 8,031.52