Finding the Fourth Proportional to 40,386.21, 55,732.28 and 22,480.71

Step by Step Solution

1. Step 1: Write the proportion equation
   40,386.21 : 55,732.28 = 22,480.71 : x
2. Step 2: Convert to fraction form
   40,386.21/55,732.28 = 22,480.71/x
3. Step 3: Cross multiply
   40,386.21x = 55,732.28 × 22,480.71
4. Step 4: Simplify right side
   40,386.21x = 1,252,901,111.92
5. Step 5: Solve for x
   x = 1,252,901,111.92/40,386.21
6. Step 6: Final answer
   x = 31,022.99