Finding the Fourth Proportional to 40,066.18, 55,291.81 and 22,160.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,066.18 : 55,291.81 = 22,160.72 : x
2. Step 2: Convert to fraction form
   40,066.18/55,291.81 = 22,160.72/x
3. Step 3: Cross multiply
   40,066.18x = 55,291.81 × 22,160.72
4. Step 4: Simplify right side
   40,066.18x = 1,225,306,319.70
5. Step 5: Solve for x
   x = 1,225,306,319.70/40,066.18
6. Step 6: Final answer
   x = 30,582.06