Finding the Fourth Proportional to 16,290.45, 22,477.82 and 9,576.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290.45 : 22,477.82 = 9,576.36 : x
2. Step 2: Convert to fraction form
   16,290.45/22,477.82 = 9,576.36/x
3. Step 3: Cross multiply
   16,290.45x = 22,477.82 × 9,576.36
4. Step 4: Simplify right side
   16,290.45x = 215,255,648.45
5. Step 5: Solve for x
   x = 215,255,648.45/16,290.45
6. Step 6: Final answer
   x = 13,213.61