Finding the Fourth Proportional to 18,057.82, 24,926.07 and 12,411.30

Step by Step Solution

1. Step 1: Write the proportion equation
   18,057.82 : 24,926.07 = 12,411.30 : x
2. Step 2: Convert to fraction form
   18,057.82/24,926.07 = 12,411.30/x
3. Step 3: Cross multiply
   18,057.82x = 24,926.07 × 12,411.30
4. Step 4: Simplify right side
   18,057.82x = 309,364,932.59
5. Step 5: Solve for x
   x = 309,364,932.59/18,057.82
6. Step 6: Final answer
   x = 17,131.91