Finding the Fourth Proportional to 16,918.86, 23,347.52 and 9,365.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,918.86 : 23,347.52 = 9,365.50 : x
2. Step 2: Convert to fraction form
   16,918.86/23,347.52 = 9,365.50/x
3. Step 3: Cross multiply
   16,918.86x = 23,347.52 × 9,365.50
4. Step 4: Simplify right side
   16,918.86x = 218,661,198.56
5. Step 5: Solve for x
   x = 218,661,198.56/16,918.86
6. Step 6: Final answer
   x = 12,924.11