Finding the Fourth Proportional to 8,436.23, 12,654.56 and 2,196.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436.23 : 12,654.56 = 2,196.09 : x
2. Step 2: Convert to fraction form
   8,436.23/12,654.56 = 2,196.09/x
3. Step 3: Cross multiply
   8,436.23x = 12,654.56 × 2,196.09
4. Step 4: Simplify right side
   8,436.23x = 27,790,541.69
5. Step 5: Solve for x
   x = 27,790,541.69/8,436.23
6. Step 6: Final answer
   x = 3,294.19