Finding the Fourth Proportional to 16,290.82, 22,476.18 and 9,574.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290.82 : 22,476.18 = 9,574.30 : x
2. Step 2: Convert to fraction form
   16,290.82/22,476.18 = 9,574.30/x
3. Step 3: Cross multiply
   16,290.82x = 22,476.18 × 9,574.30
4. Step 4: Simplify right side
   16,290.82x = 215,193,690.17
5. Step 5: Solve for x
   x = 215,193,690.17/16,290.82
6. Step 6: Final answer
   x = 13,209.51