Finding the Fourth Proportional to 12,196.34, 16,829.34 and 7,712.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.34 : 16,829.34 = 7,712.18 : x
2. Step 2: Convert to fraction form
   12,196.34/16,829.34 = 7,712.18/x
3. Step 3: Cross multiply
   12,196.34x = 16,829.34 × 7,712.18
4. Step 4: Simplify right side
   12,196.34x = 129,790,899.36
5. Step 5: Solve for x
   x = 129,790,899.36/12,196.34
6. Step 6: Final answer
   x = 10,641.79