Finding the Fourth Proportional to 10,673.89, 16,013.21 and 3,279.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,673.89 : 16,013.21 = 3,279.10 : x
2. Step 2: Convert to fraction form
   10,673.89/16,013.21 = 3,279.10/x
3. Step 3: Cross multiply
   10,673.89x = 16,013.21 × 3,279.10
4. Step 4: Simplify right side
   10,673.89x = 52,508,916.91
5. Step 5: Solve for x
   x = 52,508,916.91/10,673.89
6. Step 6: Final answer
   x = 4,919.38