Finding the Fourth Proportional to 16,789.86, 23,171.49 and 9,237.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,789.86 : 23,171.49 = 9,237.69 : x
2. Step 2: Convert to fraction form
   16,789.86/23,171.49 = 9,237.69/x
3. Step 3: Cross multiply
   16,789.86x = 23,171.49 × 9,237.69
4. Step 4: Simplify right side
   16,789.86x = 214,051,041.46
5. Step 5: Solve for x
   x = 214,051,041.46/16,789.86
6. Step 6: Final answer
   x = 12,748.83