Finding the Fourth Proportional to 16,291.55, 22,479.39 and 9,577.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,291.55 : 22,479.39 = 9,577.46 : x
2. Step 2: Convert to fraction form
   16,291.55/22,479.39 = 9,577.46/x
3. Step 3: Cross multiply
   16,291.55x = 22,479.39 × 9,577.46
4. Step 4: Simplify right side
   16,291.55x = 215,295,514.75
5. Step 5: Solve for x
   x = 215,295,514.75/16,291.55
6. Step 6: Final answer
   x = 13,215.16