Finding the Fourth Proportional to 172,744.86, 259,255.53 and 89,662.62

Step by Step Solution

1. Step 1: Write the proportion equation
   172,744.86 : 259,255.53 = 89,662.62 : x
2. Step 2: Convert to fraction form
   172,744.86/259,255.53 = 89,662.62/x
3. Step 3: Cross multiply
   172,744.86x = 259,255.53 × 89,662.62
4. Step 4: Simplify right side
   172,744.86x = 23,245,530,069.29
5. Step 5: Solve for x
   x = 23,245,530,069.29/172,744.86
6. Step 6: Final answer
   x = 134,565.68