Finding the Fourth Proportional to 95,981.28, 143,859.83 and 72,212.48

Step by Step Solution

1. Step 1: Write the proportion equation
   95,981.28 : 143,859.83 = 72,212.48 : x
2. Step 2: Convert to fraction form
   95,981.28/143,859.83 = 72,212.48/x
3. Step 3: Cross multiply
   95,981.28x = 143,859.83 × 72,212.48
4. Step 4: Simplify right side
   95,981.28x = 10,388,474,377.38
5. Step 5: Solve for x
   x = 10,388,474,377.38/95,981.28
6. Step 6: Final answer
   x = 108,234.38