Finding the Fourth Proportional to 13,164.98, 18,167.55 and 7,196.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.98 : 18,167.55 = 7,196.60 : x
2. Step 2: Convert to fraction form
   13,164.98/18,167.55 = 7,196.60/x
3. Step 3: Cross multiply
   13,164.98x = 18,167.55 × 7,196.60
4. Step 4: Simplify right side
   13,164.98x = 130,744,590.33
5. Step 5: Solve for x
   x = 130,744,590.33/13,164.98
6. Step 6: Final answer
   x = 9,931.24