Finding the Fourth Proportional to 10,876.26, 16,313.52 and 3,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,876.26 : 16,313.52 = 3,478.72 : x
2. Step 2: Convert to fraction form
   10,876.26/16,313.52 = 3,478.72/x
3. Step 3: Cross multiply
   10,876.26x = 16,313.52 × 3,478.72
4. Step 4: Simplify right side
   10,876.26x = 56,750,168.29
5. Step 5: Solve for x
   x = 56,750,168.29/10,876.26
6. Step 6: Final answer
   x = 5,217.80