Finding the Fourth Proportional to 8,449.70, 12,671.34 and 3,382.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,449.70 : 12,671.34 = 3,382.34 : x
2. Step 2: Convert to fraction form
   8,449.70/12,671.34 = 3,382.34/x
3. Step 3: Cross multiply
   8,449.70x = 12,671.34 × 3,382.34
4. Step 4: Simplify right side
   8,449.70x = 42,858,780.14
5. Step 5: Solve for x
   x = 42,858,780.14/8,449.70
6. Step 6: Final answer
   x = 5,072.23