Finding the Fourth Proportional to 13,333.41, 18,399.56 and 7,667.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.41 : 18,399.56 = 7,667.73 : x
2. Step 2: Convert to fraction form
   13,333.41/18,399.56 = 7,667.73/x
3. Step 3: Cross multiply
   13,333.41x = 18,399.56 × 7,667.73
4. Step 4: Simplify right side
   13,333.41x = 141,082,819.86
5. Step 5: Solve for x
   x = 141,082,819.86/13,333.41
6. Step 6: Final answer
   x = 10,581.15