Finding the Fourth Proportional to 10,934.55, 16,404.25 and 3,142.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,934.55 : 16,404.25 = 3,142.75 : x
2. Step 2: Convert to fraction form
   10,934.55/16,404.25 = 3,142.75/x
3. Step 3: Cross multiply
   10,934.55x = 16,404.25 × 3,142.75
4. Step 4: Simplify right side
   10,934.55x = 51,554,456.69
5. Step 5: Solve for x
   x = 51,554,456.69/10,934.55
6. Step 6: Final answer
   x = 4,714.82