Finding the Fourth Proportional to 8,310.79, 12,466.15 and 3,379.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,310.79 : 12,466.15 = 3,379.27 : x
2. Step 2: Convert to fraction form
   8,310.79/12,466.15 = 3,379.27/x
3. Step 3: Cross multiply
   8,310.79x = 12,466.15 × 3,379.27
4. Step 4: Simplify right side
   8,310.79x = 42,126,486.71
5. Step 5: Solve for x
   x = 42,126,486.71/8,310.79
6. Step 6: Final answer
   x = 5,068.89