Finding the Fourth Proportional to 8,221.34, 12,266.94 and 8,032.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,221.34 : 12,266.94 = 8,032.25 : x
2. Step 2: Convert to fraction form
   8,221.34/12,266.94 = 8,032.25/x
3. Step 3: Cross multiply
   8,221.34x = 12,266.94 × 8,032.25
4. Step 4: Simplify right side
   8,221.34x = 98,531,067.48
5. Step 5: Solve for x
   x = 98,531,067.48/8,221.34
6. Step 6: Final answer
   x = 11,984.80