Finding the Fourth Proportional to 40,147.49, 55,399.04 and 22,238.05

Step by Step Solution

1. Step 1: Write the proportion equation
   40,147.49 : 55,399.04 = 22,238.05 : x
2. Step 2: Convert to fraction form
   40,147.49/55,399.04 = 22,238.05/x
3. Step 3: Cross multiply
   40,147.49x = 55,399.04 × 22,238.05
4. Step 4: Simplify right side
   40,147.49x = 1,231,966,344.48
5. Step 5: Solve for x
   x = 1,231,966,344.48/40,147.49
6. Step 6: Final answer
   x = 30,686.02