Finding the Fourth Proportional to 12,089.39, 16,682.22 and 9,577.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,089.39 : 16,682.22 = 9,577.71 : x
2. Step 2: Convert to fraction form
   12,089.39/16,682.22 = 9,577.71/x
3. Step 3: Cross multiply
   12,089.39x = 16,682.22 × 9,577.71
4. Step 4: Simplify right side
   12,089.39x = 159,777,465.32
5. Step 5: Solve for x
   x = 159,777,465.32/12,089.39
6. Step 6: Final answer
   x = 13,216.34