Finding the Fourth Proportional to 139,896.38, 193,059.32 and 76,234.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,896.38 : 193,059.32 = 76,234.18 : x
2. Step 2: Convert to fraction form
   139,896.38/193,059.32 = 76,234.18/x
3. Step 3: Cross multiply
   139,896.38x = 193,059.32 × 76,234.18
4. Step 4: Simplify right side
   139,896.38x = 14,717,718,951.56
5. Step 5: Solve for x
   x = 14,717,718,951.56/139,896.38
6. Step 6: Final answer
   x = 105,204.43