Finding the Fourth Proportional to 16,890.03, 23,308.00 and 9,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,890.03 : 23,308.00 = 9,336.50 : x
2. Step 2: Convert to fraction form
   16,890.03/23,308.00 = 9,336.50/x
3. Step 3: Cross multiply
   16,890.03x = 23,308.00 × 9,336.50
4. Step 4: Simplify right side
   16,890.03x = 217,615,089.52
5. Step 5: Solve for x
   x = 217,615,089.52/16,890.03
6. Step 6: Final answer
   x = 12,884.23