Finding the Fourth Proportional to 17,199.81, 25,748.69 and 10,516.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,199.81 : 25,748.69 = 10,516.30 : x
2. Step 2: Convert to fraction form
   17,199.81/25,748.69 = 10,516.30/x
3. Step 3: Cross multiply
   17,199.81x = 25,748.69 × 10,516.30
4. Step 4: Simplify right side
   17,199.81x = 270,780,831.69
5. Step 5: Solve for x
   x = 270,780,831.69/17,199.81
6. Step 6: Final answer
   x = 15,743.25