Finding the Fourth Proportional to 87,423.89, 120,644.75 and 49,183.47

Step by Step Solution

1. Step 1: Write the proportion equation
   87,423.89 : 120,644.75 = 49,183.47 : x
2. Step 2: Convert to fraction form
   87,423.89/120,644.75 = 49,183.47/x
3. Step 3: Cross multiply
   87,423.89x = 120,644.75 × 49,183.47
4. Step 4: Simplify right side
   87,423.89x = 5,933,727,196.37
5. Step 5: Solve for x
   x = 5,933,727,196.37/87,423.89
6. Step 6: Final answer
   x = 67,873.07