Finding the Fourth Proportional to 16,850.94, 23,255.87 and 9,681.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,850.94 : 23,255.87 = 9,681.86 : x
2. Step 2: Convert to fraction form
   16,850.94/23,255.87 = 9,681.86/x
3. Step 3: Cross multiply
   16,850.94x = 23,255.87 × 9,681.86
4. Step 4: Simplify right side
   16,850.94x = 225,160,077.52
5. Step 5: Solve for x
   x = 225,160,077.52/16,850.94
6. Step 6: Final answer
   x = 13,361.87