Finding the Fourth Proportional to 7,147.98, 10,714.32 and 2,986.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,147.98 : 10,714.32 = 2,986.92 : x
2. Step 2: Convert to fraction form
   7,147.98/10,714.32 = 2,986.92/x
3. Step 3: Cross multiply
   7,147.98x = 10,714.32 × 2,986.92
4. Step 4: Simplify right side
   7,147.98x = 32,002,816.69
5. Step 5: Solve for x
   x = 32,002,816.69/7,147.98
6. Step 6: Final answer
   x = 4,477.18