Finding the Fourth Proportional to 16,885.37, 23,300.58 and 9,331.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.37 : 23,300.58 = 9,331.60 : x
2. Step 2: Convert to fraction form
   16,885.37/23,300.58 = 9,331.60/x
3. Step 3: Cross multiply
   16,885.37x = 23,300.58 × 9,331.60
4. Step 4: Simplify right side
   16,885.37x = 217,431,692.33
5. Step 5: Solve for x
   x = 217,431,692.33/16,885.37
6. Step 6: Final answer
   x = 12,876.93