Finding the Fourth Proportional to 17,086.77, 25,633.92 and 5,242.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,086.77 : 25,633.92 = 5,242.18 : x
2. Step 2: Convert to fraction form
   17,086.77/25,633.92 = 5,242.18/x
3. Step 3: Cross multiply
   17,086.77x = 25,633.92 × 5,242.18
4. Step 4: Simplify right side
   17,086.77x = 134,377,468.37
5. Step 5: Solve for x
   x = 134,377,468.37/17,086.77
6. Step 6: Final answer
   x = 7,864.42