Finding the Fourth Proportional to 39,921.27, 55,090.17 and 22,016.27

Step by Step Solution

1. Step 1: Write the proportion equation
   39,921.27 : 55,090.17 = 22,016.27 : x
2. Step 2: Convert to fraction form
   39,921.27/55,090.17 = 22,016.27/x
3. Step 3: Cross multiply
   39,921.27x = 55,090.17 × 22,016.27
4. Step 4: Simplify right side
   39,921.27x = 1,212,879,781.62
5. Step 5: Solve for x
   x = 1,212,879,781.62/39,921.27
6. Step 6: Final answer
   x = 30,381.79