Finding the Fourth Proportional to 87,356.56, 120,552.15 and 49,638.10

Step by Step Solution

1. Step 1: Write the proportion equation
   87,356.56 : 120,552.15 = 49,638.10 : x
2. Step 2: Convert to fraction form
   87,356.56/120,552.15 = 49,638.10/x
3. Step 3: Cross multiply
   87,356.56x = 120,552.15 × 49,638.10
4. Step 4: Simplify right side
   87,356.56x = 5,983,979,676.92
5. Step 5: Solve for x
   x = 5,983,979,676.92/87,356.56
6. Step 6: Final answer
   x = 68,500.63