Finding the Fourth Proportional to 139,382.90, 192,364.89 and 82,794.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,382.90 : 192,364.89 = 82,794.50 : x
2. Step 2: Convert to fraction form
   139,382.90/192,364.89 = 82,794.50/x
3. Step 3: Cross multiply
   139,382.90x = 192,364.89 × 82,794.50
4. Step 4: Simplify right side
   139,382.90x = 15,926,754,885.11
5. Step 5: Solve for x
   x = 15,926,754,885.11/139,382.90
6. Step 6: Final answer
   x = 114,266.20