Finding the Fourth Proportional to 9,951.72, 14,929.90 and 3,711.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,951.72 : 14,929.90 = 3,711.76 : x
2. Step 2: Convert to fraction form
   9,951.72/14,929.90 = 3,711.76/x
3. Step 3: Cross multiply
   9,951.72x = 14,929.90 × 3,711.76
4. Step 4: Simplify right side
   9,951.72x = 55,416,205.62
5. Step 5: Solve for x
   x = 55,416,205.62/9,951.72
6. Step 6: Final answer
   x = 5,568.51