Finding the Fourth Proportional to 9,960.44, 13,743.43 and 5,712.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960.44 : 13,743.43 = 5,712.86 : x
2. Step 2: Convert to fraction form
   9,960.44/13,743.43 = 5,712.86/x
3. Step 3: Cross multiply
   9,960.44x = 13,743.43 × 5,712.86
4. Step 4: Simplify right side
   9,960.44x = 78,514,311.59
5. Step 5: Solve for x
   x = 78,514,311.59/9,960.44
6. Step 6: Final answer
   x = 7,882.62