Finding the Fourth Proportional to 321,162.10, 481,715.82 and 131,568.34

Step by Step Solution

1. Step 1: Write the proportion equation
   321,162.10 : 481,715.82 = 131,568.34 : x
2. Step 2: Convert to fraction form
   321,162.10/481,715.82 = 131,568.34/x
3. Step 3: Cross multiply
   321,162.10x = 481,715.82 × 131,568.34
4. Step 4: Simplify right side
   321,162.10x = 63,378,550,789.14
5. Step 5: Solve for x
   x = 63,378,550,789.14/321,162.10
6. Step 6: Final answer
   x = 197,341.31