Finding the Fourth Proportional to 16,558.67, 22,851.23 and 9,005.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,558.67 : 22,851.23 = 9,005.15 : x
2. Step 2: Convert to fraction form
   16,558.67/22,851.23 = 9,005.15/x
3. Step 3: Cross multiply
   16,558.67x = 22,851.23 × 9,005.15
4. Step 4: Simplify right side
   16,558.67x = 205,778,753.83
5. Step 5: Solve for x
   x = 205,778,753.83/16,558.67
6. Step 6: Final answer
   x = 12,427.25