Finding the Fourth Proportional to 17,017.20, 25,499.79 and 7,151.07

Step by Step Solution

1. Step 1: Write the proportion equation
   17,017.20 : 25,499.79 = 7,151.07 : x
2. Step 2: Convert to fraction form
   17,017.20/25,499.79 = 7,151.07/x
3. Step 3: Cross multiply
   17,017.20x = 25,499.79 × 7,151.07
4. Step 4: Simplify right side
   17,017.20x = 182,350,783.28
5. Step 5: Solve for x
   x = 182,350,783.28/17,017.20
6. Step 6: Final answer
   x = 10,715.67