Finding the Fourth Proportional to 21,401.23, 32,107.31 and 8,250.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,401.23 : 32,107.31 = 8,250.07 : x
2. Step 2: Convert to fraction form
   21,401.23/32,107.31 = 8,250.07/x
3. Step 3: Cross multiply
   21,401.23x = 32,107.31 × 8,250.07
4. Step 4: Simplify right side
   21,401.23x = 264,887,353.22
5. Step 5: Solve for x
   x = 264,887,353.22/21,401.23
6. Step 6: Final answer
   x = 12,377.21