Finding the Fourth Proportional to 8,667.72, 11,964.51 and 5,133.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.72 : 11,964.51 = 5,133.96 : x
2. Step 2: Convert to fraction form
   8,667.72/11,964.51 = 5,133.96/x
3. Step 3: Cross multiply
   8,667.72x = 11,964.51 × 5,133.96
4. Step 4: Simplify right side
   8,667.72x = 61,425,315.76
5. Step 5: Solve for x
   x = 61,425,315.76/8,667.72
6. Step 6: Final answer
   x = 7,086.68