Finding the Fourth Proportional to 162.86, 224.82 and 104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162.86 : 224.82 = 104.72 : x
2. Step 2: Convert to fraction form
   162.86/224.82 = 104.72/x
3. Step 3: Cross multiply
   162.86x = 224.82 × 104.72
4. Step 4: Simplify right side
   162.86x = 23,543.15
5. Step 5: Solve for x
   x = 23,543.15/162.86
6. Step 6: Final answer
   x = 144.56