Finding the Fourth Proportional to 8,641.34, 12,960.06 and 3,376.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,641.34 : 12,960.06 = 3,376.48 : x
2. Step 2: Convert to fraction form
   8,641.34/12,960.06 = 3,376.48/x
3. Step 3: Cross multiply
   8,641.34x = 12,960.06 × 3,376.48
4. Step 4: Simplify right side
   8,641.34x = 43,759,383.39
5. Step 5: Solve for x
   x = 43,759,383.39/8,641.34
6. Step 6: Final answer
   x = 5,063.96