Finding the Fourth Proportional to 40,168.18, 55,431.22 and 22,263.02

Step by Step Solution

1. Step 1: Write the proportion equation
   40,168.18 : 55,431.22 = 22,263.02 : x
2. Step 2: Convert to fraction form
   40,168.18/55,431.22 = 22,263.02/x
3. Step 3: Cross multiply
   40,168.18x = 55,431.22 × 22,263.02
4. Step 4: Simplify right side
   40,168.18x = 1,234,066,359.48
5. Step 5: Solve for x
   x = 1,234,066,359.48/40,168.18
6. Step 6: Final answer
   x = 30,722.49