Finding the Fourth Proportional to 40,738.10, 56,217.58 and 22,588.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,738.10 : 56,217.58 = 22,588.72 : x
2. Step 2: Convert to fraction form
   40,738.10/56,217.58 = 22,588.72/x
3. Step 3: Cross multiply
   40,738.10x = 56,217.58 × 22,588.72
4. Step 4: Simplify right side
   40,738.10x = 1,269,882,976.68
5. Step 5: Solve for x
   x = 1,269,882,976.68/40,738.10
6. Step 6: Final answer
   x = 31,171.88