Finding the Fourth Proportional to 87,144.48, 120,259.37 and 49,418.73

Step by Step Solution

1. Step 1: Write the proportion equation
   87,144.48 : 120,259.37 = 49,418.73 : x
2. Step 2: Convert to fraction form
   87,144.48/120,259.37 = 49,418.73/x
3. Step 3: Cross multiply
   87,144.48x = 120,259.37 × 49,418.73
4. Step 4: Simplify right side
   87,144.48x = 5,943,065,336.00
5. Step 5: Solve for x
   x = 5,943,065,336.00/87,144.48
6. Step 6: Final answer
   x = 68,197.84