Finding the Fourth Proportional to 12,196.09, 18,293.70 and 5,171.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.09 : 18,293.70 = 5,171.58 : x
2. Step 2: Convert to fraction form
   12,196.09/18,293.70 = 5,171.58/x
3. Step 3: Cross multiply
   12,196.09x = 18,293.70 × 5,171.58
4. Step 4: Simplify right side
   12,196.09x = 94,607,333.05
5. Step 5: Solve for x
   x = 94,607,333.05/12,196.09
6. Step 6: Final answer
   x = 7,757.19