Finding the Fourth Proportional to 8,310.96, 12,461.04 and 3,381.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,310.96 : 12,461.04 = 3,381.12 : x
2. Step 2: Convert to fraction form
   8,310.96/12,461.04 = 3,381.12/x
3. Step 3: Cross multiply
   8,310.96x = 12,461.04 × 3,381.12
4. Step 4: Simplify right side
   8,310.96x = 42,132,271.56
5. Step 5: Solve for x
   x = 42,132,271.56/8,310.96
6. Step 6: Final answer
   x = 5,069.48