Finding the Fourth Proportional to 10,756.71, 16,136.71 and 5,488.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,756.71 : 16,136.71 = 5,488.85 : x
2. Step 2: Convert to fraction form
   10,756.71/16,136.71 = 5,488.85/x
3. Step 3: Cross multiply
   10,756.71x = 16,136.71 × 5,488.85
4. Step 4: Simplify right side
   10,756.71x = 88,571,872.56
5. Step 5: Solve for x
   x = 88,571,872.56/10,756.71
6. Step 6: Final answer
   x = 8,234.11