Finding the Fourth Proportional to 87,345.86, 120,537.69 and 49,622.18

Step by Step Solution

1. Step 1: Write the proportion equation
   87,345.86 : 120,537.69 = 49,622.18 : x
2. Step 2: Convert to fraction form
   87,345.86/120,537.69 = 49,622.18/x
3. Step 3: Cross multiply
   87,345.86x = 120,537.69 × 49,622.18
4. Step 4: Simplify right side
   87,345.86x = 5,981,342,949.96
5. Step 5: Solve for x
   x = 5,981,342,949.96/87,345.86
6. Step 6: Final answer
   x = 68,478.84