Finding the Fourth Proportional to 19,674.72, 27,131.82 and 12,492.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,674.72 : 27,131.82 = 12,492.16 : x
2. Step 2: Convert to fraction form
   19,674.72/27,131.82 = 12,492.16/x
3. Step 3: Cross multiply
   19,674.72x = 27,131.82 × 12,492.16
4. Step 4: Simplify right side
   19,674.72x = 338,935,036.53
5. Step 5: Solve for x
   x = 338,935,036.53/19,674.72
6. Step 6: Final answer
   x = 17,226.93