Finding the Fourth Proportional to 40,026.18, 55,235.58 and 22,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,026.18 : 55,235.58 = 22,120.72 : x
2. Step 2: Convert to fraction form
   40,026.18/55,235.58 = 22,120.72/x
3. Step 3: Cross multiply
   40,026.18x = 55,235.58 × 22,120.72
4. Step 4: Simplify right side
   40,026.18x = 1,221,850,799.22
5. Step 5: Solve for x
   x = 1,221,850,799.22/40,026.18
6. Step 6: Final answer
   x = 30,526.29