Finding the Fourth Proportional to 12,714.91, 19,074.42 and 3,951.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714.91 : 19,074.42 = 3,951.86 : x
2. Step 2: Convert to fraction form
   12,714.91/19,074.42 = 3,951.86/x
3. Step 3: Cross multiply
   12,714.91x = 19,074.42 × 3,951.86
4. Step 4: Simplify right side
   12,714.91x = 75,379,342.05
5. Step 5: Solve for x
   x = 75,379,342.05/12,714.91
6. Step 6: Final answer
   x = 5,928.42