Finding the Fourth Proportional to 21,401.72, 29,536.58 and 12,327.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,401.72 : 29,536.58 = 12,327.39 : x
2. Step 2: Convert to fraction form
   21,401.72/29,536.58 = 12,327.39/x
3. Step 3: Cross multiply
   21,401.72x = 29,536.58 × 12,327.39
4. Step 4: Simplify right side
   21,401.72x = 364,108,971.74
5. Step 5: Solve for x
   x = 364,108,971.74/21,401.72
6. Step 6: Final answer
   x = 17,013.07