Finding the Fourth Proportional to 331,113.20, 456,881.24 and 195,128.69

Step by Step Solution

1. Step 1: Write the proportion equation
   331,113.20 : 456,881.24 = 195,128.69 : x
2. Step 2: Convert to fraction form
   331,113.20/456,881.24 = 195,128.69/x
3. Step 3: Cross multiply
   331,113.20x = 456,881.24 × 195,128.69
4. Step 4: Simplify right side
   331,113.20x = 89,150,636,050.19
5. Step 5: Solve for x
   x = 89,150,636,050.19/331,113.20
6. Step 6: Final answer
   x = 269,245.19