Finding the Fourth Proportional to 10,515.72, 14,511.72 and 5,735.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515.72 : 14,511.72 = 5,735.67 : x
2. Step 2: Convert to fraction form
   10,515.72/14,511.72 = 5,735.67/x
3. Step 3: Cross multiply
   10,515.72x = 14,511.72 × 5,735.67
4. Step 4: Simplify right side
   10,515.72x = 83,234,437.05
5. Step 5: Solve for x
   x = 83,234,437.05/10,515.72
6. Step 6: Final answer
   x = 7,915.24