Finding the Fourth Proportional to 10,561.27, 14,573.56 and 6,311.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.27 : 14,573.56 = 6,311.48 : x
2. Step 2: Convert to fraction form
   10,561.27/14,573.56 = 6,311.48/x
3. Step 3: Cross multiply
   10,561.27x = 14,573.56 × 6,311.48
4. Step 4: Simplify right side
   10,561.27x = 91,980,753.12
5. Step 5: Solve for x
   x = 91,980,753.12/10,561.27
6. Step 6: Final answer
   x = 8,709.25