Finding the Fourth Proportional to 10,487, 14,472.16 and 5,771.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487 : 14,472.16 = 5,771.39 : x
2. Step 2: Convert to fraction form
   10,487/14,472.16 = 5,771.39/x
3. Step 3: Cross multiply
   10,487x = 14,472.16 × 5,771.39
4. Step 4: Simplify right side
   10,487x = 83,524,479.50
5. Step 5: Solve for x
   x = 83,524,479.50/10,487
6. Step 6: Final answer
   x = 7,964.57