Finding the Fourth Proportional to 139,732.25, 192,855.76 and 82,368.27

Step by Step Solution

1. Step 1: Write the proportion equation
   139,732.25 : 192,855.76 = 82,368.27 : x
2. Step 2: Convert to fraction form
   139,732.25/192,855.76 = 82,368.27/x
3. Step 3: Cross multiply
   139,732.25x = 192,855.76 × 82,368.27
4. Step 4: Simplify right side
   139,732.25x = 15,885,195,104.81
5. Step 5: Solve for x
   x = 15,885,195,104.81/139,732.25
6. Step 6: Final answer
   x = 113,683.10