Finding the Fourth Proportional to 11,276.42, 16,910.91 and 3,880.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,276.42 : 16,910.91 = 3,880.71 : x
2. Step 2: Convert to fraction form
   11,276.42/16,910.91 = 3,880.71/x
3. Step 3: Cross multiply
   11,276.42x = 16,910.91 × 3,880.71
4. Step 4: Simplify right side
   11,276.42x = 65,626,337.55
5. Step 5: Solve for x
   x = 65,626,337.55/11,276.42
6. Step 6: Final answer
   x = 5,819.79