Finding the Fourth Proportional to 16,647.36, 24,976.32 and 4,961.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,647.36 : 24,976.32 = 4,961.28 : x
2. Step 2: Convert to fraction form
   16,647.36/24,976.32 = 4,961.28/x
3. Step 3: Cross multiply
   16,647.36x = 24,976.32 × 4,961.28
4. Step 4: Simplify right side
   16,647.36x = 123,914,516.89
5. Step 5: Solve for x
   x = 123,914,516.89/16,647.36
6. Step 6: Final answer
   x = 7,443.49