Finding the Fourth Proportional to 87,342.72, 120,520.80 and 49,096.86

Step by Step Solution

1. Step 1: Write the proportion equation
   87,342.72 : 120,520.80 = 49,096.86 : x
2. Step 2: Convert to fraction form
   87,342.72/120,520.80 = 49,096.86/x
3. Step 3: Cross multiply
   87,342.72x = 120,520.80 × 49,096.86
4. Step 4: Simplify right side
   87,342.72x = 5,917,192,844.69
5. Step 5: Solve for x
   x = 5,917,192,844.69/87,342.72
6. Step 6: Final answer
   x = 67,746.84