Finding the Fourth Proportional to 7,902.97, 10,902.09 and 7,340.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,902.97 : 10,902.09 = 7,340.12 : x
2. Step 2: Convert to fraction form
   7,902.97/10,902.09 = 7,340.12/x
3. Step 3: Cross multiply
   7,902.97x = 10,902.09 × 7,340.12
4. Step 4: Simplify right side
   7,902.97x = 80,022,648.85
5. Step 5: Solve for x
   x = 80,022,648.85/7,902.97
6. Step 6: Final answer
   x = 10,125.65