Finding the Fourth Proportional to 39,947.48, 55,127.48 and 22,042.49

Step by Step Solution

1. Step 1: Write the proportion equation
   39,947.48 : 55,127.48 = 22,042.49 : x
2. Step 2: Convert to fraction form
   39,947.48/55,127.48 = 22,042.49/x
3. Step 3: Cross multiply
   39,947.48x = 55,127.48 × 22,042.49
4. Step 4: Simplify right side
   39,947.48x = 1,215,146,540.78
5. Step 5: Solve for x
   x = 1,215,146,540.78/39,947.48
6. Step 6: Final answer
   x = 30,418.61