Finding the Fourth Proportional to 7,927.80, 10,906.83 and 7,709.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,927.80 : 10,906.83 = 7,709.10 : x
2. Step 2: Convert to fraction form
   7,927.80/10,906.83 = 7,709.10/x
3. Step 3: Cross multiply
   7,927.80x = 10,906.83 × 7,709.10
4. Step 4: Simplify right side
   7,927.80x = 84,081,843.15
5. Step 5: Solve for x
   x = 84,081,843.15/7,927.80
6. Step 6: Final answer
   x = 10,605.95