Finding the Fourth Proportional to 18,058.28, 24,926.69 and 12,411.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,058.28 : 24,926.69 = 12,411.72 : x
2. Step 2: Convert to fraction form
   18,058.28/24,926.69 = 12,411.72/x
3. Step 3: Cross multiply
   18,058.28x = 24,926.69 × 12,411.72
4. Step 4: Simplify right side
   18,058.28x = 309,383,096.81
5. Step 5: Solve for x
   x = 309,383,096.81/18,058.28
6. Step 6: Final answer
   x = 17,132.48