Finding the Fourth Proportional to 162.01, 223.61 and 99.83

Step by Step Solution

1. Step 1: Write the proportion equation
   162.01 : 223.61 = 99.83 : x
2. Step 2: Convert to fraction form
   162.01/223.61 = 99.83/x
3. Step 3: Cross multiply
   162.01x = 223.61 × 99.83
4. Step 4: Simplify right side
   162.01x = 22,323.05
5. Step 5: Solve for x
   x = 22,323.05/162.01
6. Step 6: Final answer
   x = 137.79