Finding the Fourth Proportional to 10,569.27, 15,861.87 and 7,229.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,569.27 : 15,861.87 = 7,229.54 : x
2. Step 2: Convert to fraction form
   10,569.27/15,861.87 = 7,229.54/x
3. Step 3: Cross multiply
   10,569.27x = 15,861.87 × 7,229.54
4. Step 4: Simplify right side
   10,569.27x = 114,673,944.33
5. Step 5: Solve for x
   x = 114,673,944.33/10,569.27
6. Step 6: Final answer
   x = 10,849.75