Finding the Fourth Proportional to 40,105.60, 55,340.72 and 22,198.08

Step by Step Solution

1. Step 1: Write the proportion equation
   40,105.60 : 55,340.72 = 22,198.08 : x
2. Step 2: Convert to fraction form
   40,105.60/55,340.72 = 22,198.08/x
3. Step 3: Cross multiply
   40,105.60x = 55,340.72 × 22,198.08
4. Step 4: Simplify right side
   40,105.60x = 1,228,457,729.82
5. Step 5: Solve for x
   x = 1,228,457,729.82/40,105.60
6. Step 6: Final answer
   x = 30,630.58