Finding the Fourth Proportional to 21,923.82, 30,254.58 and 12,492.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,923.82 : 30,254.58 = 12,492.18 : x
2. Step 2: Convert to fraction form
   21,923.82/30,254.58 = 12,492.18/x
3. Step 3: Cross multiply
   21,923.82x = 30,254.58 × 12,492.18
4. Step 4: Simplify right side
   21,923.82x = 377,945,659.18
5. Step 5: Solve for x
   x = 377,945,659.18/21,923.82
6. Step 6: Final answer
   x = 17,239.04