Finding the Fourth Proportional to 17,061.72, 25,683.09 and 12,165.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,061.72 : 25,683.09 = 12,165.24 : x
2. Step 2: Convert to fraction form
   17,061.72/25,683.09 = 12,165.24/x
3. Step 3: Cross multiply
   17,061.72x = 25,683.09 × 12,165.24
4. Step 4: Simplify right side
   17,061.72x = 312,440,953.79
5. Step 5: Solve for x
   x = 312,440,953.79/17,061.72
6. Step 6: Final answer
   x = 18,312.39