Finding the Fourth Proportional to 250,734.96, 375,838.20 and 82,211.31

Step by Step Solution

1. Step 1: Write the proportion equation
   250,734.96 : 375,838.20 = 82,211.31 : x
2. Step 2: Convert to fraction form
   250,734.96/375,838.20 = 82,211.31/x
3. Step 3: Cross multiply
   250,734.96x = 375,838.20 × 82,211.31
4. Step 4: Simplify right side
   250,734.96x = 30,898,150,770.04
5. Step 5: Solve for x
   x = 30,898,150,770.04/250,734.96
6. Step 6: Final answer
   x = 123,230.33