Finding the Fourth Proportional to 5,169.59, 7,134.42 and 2,931.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,169.59 : 7,134.42 = 2,931.86 : x
2. Step 2: Convert to fraction form
   5,169.59/7,134.42 = 2,931.86/x
3. Step 3: Cross multiply
   5,169.59x = 7,134.42 × 2,931.86
4. Step 4: Simplify right side
   5,169.59x = 20,917,120.62
5. Step 5: Solve for x
   x = 20,917,120.62/5,169.59
6. Step 6: Final answer
   x = 4,046.19