Finding the Fourth Proportional to 139,233.84, 192,123 and 82,667.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,233.84 : 192,123 = 82,667.76 : x
2. Step 2: Convert to fraction form
   139,233.84/192,123 = 82,667.76/x
3. Step 3: Cross multiply
   139,233.84x = 192,123 × 82,667.76
4. Step 4: Simplify right side
   139,233.84x = 15,882,378,054.48
5. Step 5: Solve for x
   x = 15,882,378,054.48/139,233.84
6. Step 6: Final answer
   x = 114,069.81