Finding the Fourth Proportional to 17,166.87, 25,754.49 and 5,320.35

Step by Step Solution

1. Step 1: Write the proportion equation
   17,166.87 : 25,754.49 = 5,320.35 : x
2. Step 2: Convert to fraction form
   17,166.87/25,754.49 = 5,320.35/x
3. Step 3: Cross multiply
   17,166.87x = 25,754.49 × 5,320.35
4. Step 4: Simplify right side
   17,166.87x = 137,022,900.87
5. Step 5: Solve for x
   x = 137,022,900.87/17,166.87
6. Step 6: Final answer
   x = 7,981.82