Finding the Fourth Proportional to 13,164.69, 18,167.28 and 7,196.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.69 : 18,167.28 = 7,196.36 : x
2. Step 2: Convert to fraction form
   13,164.69/18,167.28 = 7,196.36/x
3. Step 3: Cross multiply
   13,164.69x = 18,167.28 × 7,196.36
4. Step 4: Simplify right side
   13,164.69x = 130,738,196.26
5. Step 5: Solve for x
   x = 130,738,196.26/13,164.69
6. Step 6: Final answer
   x = 9,930.97