Finding the Fourth Proportional to 10,846.56, 16,269.72 and 2,638.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,846.56 : 16,269.72 = 2,638.56 : x
2. Step 2: Convert to fraction form
   10,846.56/16,269.72 = 2,638.56/x
3. Step 3: Cross multiply
   10,846.56x = 16,269.72 × 2,638.56
4. Step 4: Simplify right side
   10,846.56x = 42,928,632.40
5. Step 5: Solve for x
   x = 42,928,632.40/10,846.56
6. Step 6: Final answer
   x = 3,957.81