Finding the Fourth Proportional to 40,118.04, 55,364.88 and 22,215

Step by Step Solution

1. Step 1: Write the proportion equation
   40,118.04 : 55,364.88 = 22,215 : x
2. Step 2: Convert to fraction form
   40,118.04/55,364.88 = 22,215/x
3. Step 3: Cross multiply
   40,118.04x = 55,364.88 × 22,215
4. Step 4: Simplify right side
   40,118.04x = 1,229,930,809.20
5. Step 5: Solve for x
   x = 1,229,930,809.20/40,118.04
6. Step 6: Final answer
   x = 30,657.80