Finding the Fourth Proportional to 12,196.54, 18,290.49 and 5,267.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.54 : 18,290.49 = 5,267.26 : x
2. Step 2: Convert to fraction form
   12,196.54/18,290.49 = 5,267.26/x
3. Step 3: Cross multiply
   12,196.54x = 18,290.49 × 5,267.26
4. Step 4: Simplify right side
   12,196.54x = 96,340,766.36
5. Step 5: Solve for x
   x = 96,340,766.36/12,196.54
6. Step 6: Final answer
   x = 7,899.02