Finding the Fourth Proportional to 10,675.40, 16,013.90 and 3,279.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,675.40 : 16,013.90 = 3,279.89 : x
2. Step 2: Convert to fraction form
   10,675.40/16,013.90 = 3,279.89/x
3. Step 3: Cross multiply
   10,675.40x = 16,013.90 × 3,279.89
4. Step 4: Simplify right side
   10,675.40x = 52,523,878.71
5. Step 5: Solve for x
   x = 52,523,878.71/10,675.40
6. Step 6: Final answer
   x = 4,920.09