Finding the Fourth Proportional to 8,747.72, 12,072.05 and 4,769.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,747.72 : 12,072.05 = 4,769.03 : x
2. Step 2: Convert to fraction form
   8,747.72/12,072.05 = 4,769.03/x
3. Step 3: Cross multiply
   8,747.72x = 12,072.05 × 4,769.03
4. Step 4: Simplify right side
   8,747.72x = 57,571,968.61
5. Step 5: Solve for x
   x = 57,571,968.61/8,747.72
6. Step 6: Final answer
   x = 6,581.37