Finding the Fourth Proportional to 139,388.52, 192,384.16 and 82,788.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,388.52 : 192,384.16 = 82,788.96 : x
2. Step 2: Convert to fraction form
   139,388.52/192,384.16 = 82,788.96/x
3. Step 3: Cross multiply
   139,388.52x = 192,384.16 × 82,788.96
4. Step 4: Simplify right side
   139,388.52x = 15,927,284,526.87
5. Step 5: Solve for x
   x = 15,927,284,526.87/139,388.52
6. Step 6: Final answer
   x = 114,265.40