Finding the Fourth Proportional to 40,356.43, 55,688.72 and 22,449.96

Step by Step Solution

1. Step 1: Write the proportion equation
   40,356.43 : 55,688.72 = 22,449.96 : x
2. Step 2: Convert to fraction form
   40,356.43/55,688.72 = 22,449.96/x
3. Step 3: Cross multiply
   40,356.43x = 55,688.72 × 22,449.96
4. Step 4: Simplify right side
   40,356.43x = 1,250,209,424.20
5. Step 5: Solve for x
   x = 1,250,209,424.20/40,356.43
6. Step 6: Final answer
   x = 30,979.19