Finding the Fourth Proportional to 40,112.42, 55,355.40 and 22,208.58

Step by Step Solution

1. Step 1: Write the proportion equation
   40,112.42 : 55,355.40 = 22,208.58 : x
2. Step 2: Convert to fraction form
   40,112.42/55,355.40 = 22,208.58/x
3. Step 3: Cross multiply
   40,112.42x = 55,355.40 × 22,208.58
4. Step 4: Simplify right side
   40,112.42x = 1,229,364,829.33
5. Step 5: Solve for x
   x = 1,229,364,829.33/40,112.42
6. Step 6: Final answer
   x = 30,647.99