Finding the Fourth Proportional to 40,018.58, 55,222.88 and 22,113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,018.58 : 55,222.88 = 22,113.42 : x
2. Step 2: Convert to fraction form
   40,018.58/55,222.88 = 22,113.42/x
3. Step 3: Cross multiply
   40,018.58x = 55,222.88 × 22,113.42
4. Step 4: Simplify right side
   40,018.58x = 1,221,166,739.05
5. Step 5: Solve for x
   x = 1,221,166,739.05/40,018.58
6. Step 6: Final answer
   x = 30,514.99