Finding the Fourth Proportional to 7,086.48, 10,696.28 and 7,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.48 : 10,696.28 = 7,086.48 : x
2. Step 2: Convert to fraction form
   7,086.48/10,696.28 = 7,086.48/x
3. Step 3: Cross multiply
   7,086.48x = 10,696.28 × 7,086.48
4. Step 4: Simplify right side
   7,086.48x = 75,798,974.29
5. Step 5: Solve for x
   x = 75,798,974.29/7,086.48
6. Step 6: Final answer
   x = 10,696.28