Finding the Fourth Proportional to 139,334.10, 192,297.47 and 82,745.48

Step by Step Solution

1. Step 1: Write the proportion equation
   139,334.10 : 192,297.47 = 82,745.48 : x
2. Step 2: Convert to fraction form
   139,334.10/192,297.47 = 82,745.48/x
3. Step 3: Cross multiply
   139,334.10x = 192,297.47 × 82,745.48
4. Step 4: Simplify right side
   139,334.10x = 15,911,745,082.72
5. Step 5: Solve for x
   x = 15,911,745,082.72/139,334.10
6. Step 6: Final answer
   x = 114,198.50