Finding the Fourth Proportional to 9,196.43, 12,694.88 and 6,216.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,196.43 : 12,694.88 = 6,216.30 : x
2. Step 2: Convert to fraction form
   9,196.43/12,694.88 = 6,216.30/x
3. Step 3: Cross multiply
   9,196.43x = 12,694.88 × 6,216.30
4. Step 4: Simplify right side
   9,196.43x = 78,915,127.17
5. Step 5: Solve for x
   x = 78,915,127.17/9,196.43
6. Step 6: Final answer
   x = 8,581.07