Finding the Fourth Proportional to 271,200, 374,256 and 158,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   271,200 : 374,256 = 158,022.72 : x
2. Step 2: Convert to fraction form
   271,200/374,256 = 158,022.72/x
3. Step 3: Cross multiply
   271,200x = 374,256 × 158,022.72
4. Step 4: Simplify right side
   271,200x = 59,140,951,096.32
5. Step 5: Solve for x
   x = 59,140,951,096.32/271,200
6. Step 6: Final answer
   x = 218,071.35