Finding the Fourth Proportional to 11,276.85, 16,914.69 and 3,880.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,276.85 : 16,914.69 = 3,880.56 : x
2. Step 2: Convert to fraction form
   11,276.85/16,914.69 = 3,880.56/x
3. Step 3: Cross multiply
   11,276.85x = 16,914.69 × 3,880.56
4. Step 4: Simplify right side
   11,276.85x = 65,638,469.43
5. Step 5: Solve for x
   x = 65,638,469.43/11,276.85
6. Step 6: Final answer
   x = 5,820.64