Finding the Fourth Proportional to 139,804.82, 192,932.83 and 76,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804.82 : 192,932.83 = 76,142.56 : x
2. Step 2: Convert to fraction form
   139,804.82/192,932.83 = 76,142.56/x
3. Step 3: Cross multiply
   139,804.82x = 192,932.83 × 76,142.56
4. Step 4: Simplify right side
   139,804.82x = 14,690,399,584.24
5. Step 5: Solve for x
   x = 14,690,399,584.24/139,804.82
6. Step 6: Final answer
   x = 105,077.92