Finding the Fourth Proportional to 7,673.30, 10,757.20 and 7,673.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,673.30 : 10,757.20 = 7,673.30 : x
2. Step 2: Convert to fraction form
   7,673.30/10,757.20 = 7,673.30/x
3. Step 3: Cross multiply
   7,673.30x = 10,757.20 × 7,673.30
4. Step 4: Simplify right side
   7,673.30x = 82,543,222.76
5. Step 5: Solve for x
   x = 82,543,222.76/7,673.30
6. Step 6: Final answer
   x = 10,757.20