Finding the Fourth Proportional to 16,658.61, 22,989.77 and 9,587.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,658.61 : 22,989.77 = 9,587.31 : x
2. Step 2: Convert to fraction form
   16,658.61/22,989.77 = 9,587.31/x
3. Step 3: Cross multiply
   16,658.61x = 22,989.77 × 9,587.31
4. Step 4: Simplify right side
   16,658.61x = 220,410,051.82
5. Step 5: Solve for x
   x = 220,410,051.82/16,658.61
6. Step 6: Final answer
   x = 13,231.00