Finding the Fourth Proportional to 7,768.76, 10,775.82 and 7,488.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,768.76 : 10,775.82 = 7,488.56 : x
2. Step 2: Convert to fraction form
   7,768.76/10,775.82 = 7,488.56/x
3. Step 3: Cross multiply
   7,768.76x = 10,775.82 × 7,488.56
4. Step 4: Simplify right side
   7,768.76x = 80,695,401.56
5. Step 5: Solve for x
   x = 80,695,401.56/7,768.76
6. Step 6: Final answer
   x = 10,387.16