Finding the Fourth Proportional to 40,275, 55,579.90 and 22,371.98

Step by Step Solution

1. Step 1: Write the proportion equation
   40,275 : 55,579.90 = 22,371.98 : x
2. Step 2: Convert to fraction form
   40,275/55,579.90 = 22,371.98/x
3. Step 3: Cross multiply
   40,275x = 55,579.90 × 22,371.98
4. Step 4: Simplify right side
   40,275x = 1,243,432,411.20
5. Step 5: Solve for x
   x = 1,243,432,411.20/40,275
6. Step 6: Final answer
   x = 30,873.55