Finding the Fourth Proportional to 17,018.72, 25,512.51 and 7,158.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,018.72 : 25,512.51 = 7,158.69 : x
2. Step 2: Convert to fraction form
   17,018.72/25,512.51 = 7,158.69/x
3. Step 3: Cross multiply
   17,018.72x = 25,512.51 × 7,158.69
4. Step 4: Simplify right side
   17,018.72x = 182,636,150.21
5. Step 5: Solve for x
   x = 182,636,150.21/17,018.72
6. Step 6: Final answer
   x = 10,731.49