Finding the Fourth Proportional to 7,760.47, 10,710.50 and 7,549.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.47 : 10,710.50 = 7,549.40 : x
2. Step 2: Convert to fraction form
   7,760.47/10,710.50 = 7,549.40/x
3. Step 3: Cross multiply
   7,760.47x = 10,710.50 × 7,549.40
4. Step 4: Simplify right side
   7,760.47x = 80,857,757.40
5. Step 5: Solve for x
   x = 80,857,757.40/7,760.47
6. Step 6: Final answer
   x = 10,419.19