Finding the Fourth Proportional to 16,171.23, 24,250.78 and 5,638.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,171.23 : 24,250.78 = 5,638.54 : x
2. Step 2: Convert to fraction form
   16,171.23/24,250.78 = 5,638.54/x
3. Step 3: Cross multiply
   16,171.23x = 24,250.78 × 5,638.54
4. Step 4: Simplify right side
   16,171.23x = 136,738,993.06
5. Step 5: Solve for x
   x = 136,738,993.06/16,171.23
6. Step 6: Final answer
   x = 8,455.70