Finding the Fourth Proportional to 139,483.62, 192,428.01 and 82,864.26

Step by Step Solution

1. Step 1: Write the proportion equation
   139,483.62 : 192,428.01 = 82,864.26 : x
2. Step 2: Convert to fraction form
   139,483.62/192,428.01 = 82,864.26/x
3. Step 3: Cross multiply
   139,483.62x = 192,428.01 × 82,864.26
4. Step 4: Simplify right side
   139,483.62x = 15,945,404,651.92
5. Step 5: Solve for x
   x = 15,945,404,651.92/139,483.62
6. Step 6: Final answer
   x = 114,317.40