Finding the Fourth Proportional to 10,876.43, 16,311.15 and 3,479.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,876.43 : 16,311.15 = 3,479.12 : x
2. Step 2: Convert to fraction form
   10,876.43/16,311.15 = 3,479.12/x
3. Step 3: Cross multiply
   10,876.43x = 16,311.15 × 3,479.12
4. Step 4: Simplify right side
   10,876.43x = 56,748,366.63
5. Step 5: Solve for x
   x = 56,748,366.63/10,876.43
6. Step 6: Final answer
   x = 5,217.56