Finding the Fourth Proportional to 40,065, 55,288.72 and 22,159.62

Step by Step Solution

1. Step 1: Write the proportion equation
   40,065 : 55,288.72 = 22,159.62 : x
2. Step 2: Convert to fraction form
   40,065/55,288.72 = 22,159.62/x
3. Step 3: Cross multiply
   40,065x = 55,288.72 × 22,159.62
4. Step 4: Simplify right side
   40,065x = 1,225,177,025.49
5. Step 5: Solve for x
   x = 1,225,177,025.49/40,065
6. Step 6: Final answer
   x = 30,579.73