Finding the Fourth Proportional to 20,185.91, 30,221.25 and 16,031.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,185.91 : 30,221.25 = 16,031.82 : x
2. Step 2: Convert to fraction form
   20,185.91/30,221.25 = 16,031.82/x
3. Step 3: Cross multiply
   20,185.91x = 30,221.25 × 16,031.82
4. Step 4: Simplify right side
   20,185.91x = 484,501,640.18
5. Step 5: Solve for x
   x = 484,501,640.18/20,185.91
6. Step 6: Final answer
   x = 24,001.97