Finding the Fourth Proportional to 40,160.42, 55,421.34 and 22,256.54

Step by Step Solution

1. Step 1: Write the proportion equation
   40,160.42 : 55,421.34 = 22,256.54 : x
2. Step 2: Convert to fraction form
   40,160.42/55,421.34 = 22,256.54/x
3. Step 3: Cross multiply
   40,160.42x = 55,421.34 × 22,256.54
4. Step 4: Simplify right side
   40,160.42x = 1,233,487,270.56
5. Step 5: Solve for x
   x = 1,233,487,270.56/40,160.42
6. Step 6: Final answer
   x = 30,714.00