Finding the Fourth Proportional to 8,196.12, 12,291.64 and 2,648.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.12 : 12,291.64 = 2,648.44 : x
2. Step 2: Convert to fraction form
   8,196.12/12,291.64 = 2,648.44/x
3. Step 3: Cross multiply
   8,196.12x = 12,291.64 × 2,648.44
4. Step 4: Simplify right side
   8,196.12x = 32,553,671.04
5. Step 5: Solve for x
   x = 32,553,671.04/8,196.12
6. Step 6: Final answer
   x = 3,971.84