Finding the Fourth Proportional to 10,514.34, 15,771.45 and 3,118.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,514.34 : 15,771.45 = 3,118.86 : x
2. Step 2: Convert to fraction form
   10,514.34/15,771.45 = 3,118.86/x
3. Step 3: Cross multiply
   10,514.34x = 15,771.45 × 3,118.86
4. Step 4: Simplify right side
   10,514.34x = 49,188,944.55
5. Step 5: Solve for x
   x = 49,188,944.55/10,514.34
6. Step 6: Final answer
   x = 4,678.27