Finding the Fourth Proportional to 139,795.56, 192,936.90 and 82,451.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,795.56 : 192,936.90 = 82,451.10 : x
2. Step 2: Convert to fraction form
   139,795.56/192,936.90 = 82,451.10/x
3. Step 3: Cross multiply
   139,795.56x = 192,936.90 × 82,451.10
4. Step 4: Simplify right side
   139,795.56x = 15,907,859,635.59
5. Step 5: Solve for x
   x = 15,907,859,635.59/139,795.56
6. Step 6: Final answer
   x = 113,793.74