Finding the Fourth Proportional to 10,487.40, 14,472.56 and 5,771.66

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.40 : 14,472.56 = 5,771.66 : x
2. Step 2: Convert to fraction form
   10,487.40/14,472.56 = 5,771.66/x
3. Step 3: Cross multiply
   10,487.40x = 14,472.56 × 5,771.66
4. Step 4: Simplify right side
   10,487.40x = 83,530,695.65
5. Step 5: Solve for x
   x = 83,530,695.65/10,487.40
6. Step 6: Final answer
   x = 7,964.86