Finding the Fourth Proportional to 139,573, 192,528.66 and 82,981

Step by Step Solution

1. Step 1: Write the proportion equation
   139,573 : 192,528.66 = 82,981 : x
2. Step 2: Convert to fraction form
   139,573/192,528.66 = 82,981/x
3. Step 3: Cross multiply
   139,573x = 192,528.66 × 82,981
4. Step 4: Simplify right side
   139,573x = 15,976,220,735.46
5. Step 5: Solve for x
   x = 15,976,220,735.46/139,573
6. Step 6: Final answer
   x = 114,464.98