Finding the Fourth Proportional to 159,520.86, 220,143.83 and 91,550.25

Step by Step Solution

1. Step 1: Write the proportion equation
   159,520.86 : 220,143.83 = 91,550.25 : x
2. Step 2: Convert to fraction form
   159,520.86/220,143.83 = 91,550.25/x
3. Step 3: Cross multiply
   159,520.86x = 220,143.83 × 91,550.25
4. Step 4: Simplify right side
   159,520.86x = 20,154,222,214.71
5. Step 5: Solve for x
   x = 20,154,222,214.71/159,520.86
6. Step 6: Final answer
   x = 126,342.24