Finding the Fourth Proportional to 107,022.35, 160,520.77 and 28,142.73

Step by Step Solution

1. Step 1: Write the proportion equation
   107,022.35 : 160,520.77 = 28,142.73 : x
2. Step 2: Convert to fraction form
   107,022.35/160,520.77 = 28,142.73/x
3. Step 3: Cross multiply
   107,022.35x = 160,520.77 × 28,142.73
4. Step 4: Simplify right side
   107,022.35x = 4,517,492,619.15
5. Step 5: Solve for x
   x = 4,517,492,619.15/107,022.35
6. Step 6: Final answer
   x = 42,210.74