Finding the Fourth Proportional to 166.34, 229.52 and 100.83

Step by Step Solution

1. Step 1: Write the proportion equation
   166.34 : 229.52 = 100.83 : x
2. Step 2: Convert to fraction form
   166.34/229.52 = 100.83/x
3. Step 3: Cross multiply
   166.34x = 229.52 × 100.83
4. Step 4: Simplify right side
   166.34x = 23,142.50
5. Step 5: Solve for x
   x = 23,142.50/166.34
6. Step 6: Final answer
   x = 139.13