Finding the Fourth Proportional to 8,196.13, 12,306.46 and 4,690.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.13 : 12,306.46 = 4,690.09 : x
2. Step 2: Convert to fraction form
   8,196.13/12,306.46 = 4,690.09/x
3. Step 3: Cross multiply
   8,196.13x = 12,306.46 × 4,690.09
4. Step 4: Simplify right side
   8,196.13x = 57,718,404.98
5. Step 5: Solve for x
   x = 57,718,404.98/8,196.13
6. Step 6: Final answer
   x = 7,042.15