Finding the Fourth Proportional to 100.83, 139.78 and 95.35

Step by Step Solution

1. Step 1: Write the proportion equation
   100.83 : 139.78 = 95.35 : x
2. Step 2: Convert to fraction form
   100.83/139.78 = 95.35/x
3. Step 3: Cross multiply
   100.83x = 139.78 × 95.35
4. Step 4: Simplify right side
   100.83x = 13,327.55
5. Step 5: Solve for x
   x = 13,327.55/100.83
6. Step 6: Final answer
   x = 132.18