Finding the Fourth Proportional to 16,965.83, 23,408.03 and 9,890.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,965.83 : 23,408.03 = 9,890.89 : x
2. Step 2: Convert to fraction form
   16,965.83/23,408.03 = 9,890.89/x
3. Step 3: Cross multiply
   16,965.83x = 23,408.03 × 9,890.89
4. Step 4: Simplify right side
   16,965.83x = 231,526,141.87
5. Step 5: Solve for x
   x = 231,526,141.87/16,965.83
6. Step 6: Final answer
   x = 13,646.61