Finding the Fourth Proportional to 150,404.96, 207,832.56 and 143,117.12

Step by Step Solution

1. Step 1: Write the proportion equation
   150,404.96 : 207,832.56 = 143,117.12 : x
2. Step 2: Convert to fraction form
   150,404.96/207,832.56 = 143,117.12/x
3. Step 3: Cross multiply
   150,404.96x = 207,832.56 × 143,117.12
4. Step 4: Simplify right side
   150,404.96x = 29,744,397,429.43
5. Step 5: Solve for x
   x = 29,744,397,429.43/150,404.96
6. Step 6: Final answer
   x = 197,762.08