Finding the Fourth Proportional to 17,320.73, 25,983.81 and 5,631.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,320.73 : 25,983.81 = 5,631.21 : x
2. Step 2: Convert to fraction form
   17,320.73/25,983.81 = 5,631.21/x
3. Step 3: Cross multiply
   17,320.73x = 25,983.81 × 5,631.21
4. Step 4: Simplify right side
   17,320.73x = 146,320,290.71
5. Step 5: Solve for x
   x = 146,320,290.71/17,320.73
6. Step 6: Final answer
   x = 8,447.70