Finding the Fourth Proportional to 13,164.88, 18,167.54 and 7,196.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.88 : 18,167.54 = 7,196.55 : x
2. Step 2: Convert to fraction form
   13,164.88/18,167.54 = 7,196.55/x
3. Step 3: Cross multiply
   13,164.88x = 18,167.54 × 7,196.55
4. Step 4: Simplify right side
   13,164.88x = 130,743,571.90
5. Step 5: Solve for x
   x = 130,743,571.90/13,164.88
6. Step 6: Final answer
   x = 9,931.24