Finding the Fourth Proportional to 16,667.91, 22,993.88 and 11,888.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,667.91 : 22,993.88 = 11,888.91 : x
2. Step 2: Convert to fraction form
   16,667.91/22,993.88 = 11,888.91/x
3. Step 3: Cross multiply
   16,667.91x = 22,993.88 × 11,888.91
4. Step 4: Simplify right side
   16,667.91x = 273,372,110.43
5. Step 5: Solve for x
   x = 273,372,110.43/16,667.91
6. Step 6: Final answer
   x = 16,401.10