Finding the Fourth Proportional to 139,474.30, 192,523.89 and 82,885

Step by Step Solution

1. Step 1: Write the proportion equation
   139,474.30 : 192,523.89 = 82,885 : x
2. Step 2: Convert to fraction form
   139,474.30/192,523.89 = 82,885/x
3. Step 3: Cross multiply
   139,474.30x = 192,523.89 × 82,885
4. Step 4: Simplify right side
   139,474.30x = 15,957,342,622.65
5. Step 5: Solve for x
   x = 15,957,342,622.65/139,474.30
6. Step 6: Final answer
   x = 114,410.63