Finding the Fourth Proportional to 21,417.35, 32,131.56 and 8,266.19

Step by Step Solution

1. Step 1: Write the proportion equation
   21,417.35 : 32,131.56 = 8,266.19 : x
2. Step 2: Convert to fraction form
   21,417.35/32,131.56 = 8,266.19/x
3. Step 3: Cross multiply
   21,417.35x = 32,131.56 × 8,266.19
4. Step 4: Simplify right side
   21,417.35x = 265,605,579.96
5. Step 5: Solve for x
   x = 265,605,579.96/21,417.35
6. Step 6: Final answer
   x = 12,401.42