Finding the Fourth Proportional to 139.82, 209.59 and 62.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139.82 : 209.59 = 62.83 : x
2. Step 2: Convert to fraction form
   139.82/209.59 = 62.83/x
3. Step 3: Cross multiply
   139.82x = 209.59 × 62.83
4. Step 4: Simplify right side
   139.82x = 13,168.54
5. Step 5: Solve for x
   x = 13,168.54/139.82
6. Step 6: Final answer
   x = 94.18