Finding the Fourth Proportional to 139,385.40, 192,368.34 and 82,797

Step by Step Solution

1. Step 1: Write the proportion equation
   139,385.40 : 192,368.34 = 82,797 : x
2. Step 2: Convert to fraction form
   139,385.40/192,368.34 = 82,797/x
3. Step 3: Cross multiply
   139,385.40x = 192,368.34 × 82,797
4. Step 4: Simplify right side
   139,385.40x = 15,927,521,446.98
5. Step 5: Solve for x
   x = 15,927,521,446.98/139,385.40
6. Step 6: Final answer
   x = 114,269.65