Finding the Fourth Proportional to 12,492.22, 17,215.55 and 8,949.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492.22 : 17,215.55 = 8,949.28 : x
2. Step 2: Convert to fraction form
   12,492.22/17,215.55 = 8,949.28/x
3. Step 3: Cross multiply
   12,492.22x = 17,215.55 × 8,949.28
4. Step 4: Simplify right side
   12,492.22x = 154,066,732.56
5. Step 5: Solve for x
   x = 154,066,732.56/12,492.22
6. Step 6: Final answer
   x = 12,333.01