Finding the Fourth Proportional to 8,936.56, 12,331.40 and 4,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,936.56 : 12,331.40 = 4,956.72 : x
2. Step 2: Convert to fraction form
   8,936.56/12,331.40 = 4,956.72/x
3. Step 3: Cross multiply
   8,936.56x = 12,331.40 × 4,956.72
4. Step 4: Simplify right side
   8,936.56x = 61,123,297.01
5. Step 5: Solve for x
   x = 61,123,297.01/8,936.56
6. Step 6: Final answer
   x = 6,839.69