Finding the Fourth Proportional to 8,487.68, 12,731.46 and 3,293.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,487.68 : 12,731.46 = 3,293.50 : x
2. Step 2: Convert to fraction form
   8,487.68/12,731.46 = 3,293.50/x
3. Step 3: Cross multiply
   8,487.68x = 12,731.46 × 3,293.50
4. Step 4: Simplify right side
   8,487.68x = 41,931,063.51
5. Step 5: Solve for x
   x = 41,931,063.51/8,487.68
6. Step 6: Final answer
   x = 4,940.23