Finding the Fourth Proportional to 10,516.79, 15,727.22 and 7,850.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,516.79 : 15,727.22 = 7,850.27 : x
2. Step 2: Convert to fraction form
   10,516.79/15,727.22 = 7,850.27/x
3. Step 3: Cross multiply
   10,516.79x = 15,727.22 × 7,850.27
4. Step 4: Simplify right side
   10,516.79x = 123,462,952.85
5. Step 5: Solve for x
   x = 123,462,952.85/10,516.79
6. Step 6: Final answer
   x = 11,739.60