Finding the Fourth Proportional to 139.01, 191.82 and 76.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139.01 : 191.82 = 76.82 : x
2. Step 2: Convert to fraction form
   139.01/191.82 = 76.82/x
3. Step 3: Cross multiply
   139.01x = 191.82 × 76.82
4. Step 4: Simplify right side
   139.01x = 14,735.80
5. Step 5: Solve for x
   x = 14,735.80/139.01
6. Step 6: Final answer
   x = 106.01