Finding the Fourth Proportional to 11,771.37, 16,228.62 and 10,085.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,771.37 : 16,228.62 = 10,085.49 : x
2. Step 2: Convert to fraction form
   11,771.37/16,228.62 = 10,085.49/x
3. Step 3: Cross multiply
   11,771.37x = 16,228.62 × 10,085.49
4. Step 4: Simplify right side
   11,771.37x = 163,673,584.72
5. Step 5: Solve for x
   x = 163,673,584.72/11,771.37
6. Step 6: Final answer
   x = 13,904.38