Finding the Fourth Proportional to 16,859.32, 25,292.82 and 5,174.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,859.32 : 25,292.82 = 5,174.20 : x
2. Step 2: Convert to fraction form
   16,859.32/25,292.82 = 5,174.20/x
3. Step 3: Cross multiply
   16,859.32x = 25,292.82 × 5,174.20
4. Step 4: Simplify right side
   16,859.32x = 130,870,109.24
5. Step 5: Solve for x
   x = 130,870,109.24/16,859.32
6. Step 6: Final answer
   x = 7,762.48