Finding the Fourth Proportional to 39,945.78, 55,124.91 and 22,041.54

Step by Step Solution

1. Step 1: Write the proportion equation
   39,945.78 : 55,124.91 = 22,041.54 : x
2. Step 2: Convert to fraction form
   39,945.78/55,124.91 = 22,041.54/x
3. Step 3: Cross multiply
   39,945.78x = 55,124.91 × 22,041.54
4. Step 4: Simplify right side
   39,945.78x = 1,215,037,908.76
5. Step 5: Solve for x
   x = 1,215,037,908.76/39,945.78
6. Step 6: Final answer
   x = 30,417.18