Finding the Fourth Proportional to 12,196.16, 18,293.82 and 5,171.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.16 : 18,293.82 = 5,171.65 : x
2. Step 2: Convert to fraction form
   12,196.16/18,293.82 = 5,171.65/x
3. Step 3: Cross multiply
   12,196.16x = 18,293.82 × 5,171.65
4. Step 4: Simplify right side
   12,196.16x = 94,609,142.73
5. Step 5: Solve for x
   x = 94,609,142.73/12,196.16
6. Step 6: Final answer
   x = 7,757.29