Finding the Fourth Proportional to 6,616.49, 9,924.72 and 5,156.73

Step by Step Solution

1. Step 1: Write the proportion equation
   6,616.49 : 9,924.72 = 5,156.73 : x
2. Step 2: Convert to fraction form
   6,616.49/9,924.72 = 5,156.73/x
3. Step 3: Cross multiply
   6,616.49x = 9,924.72 × 5,156.73
4. Step 4: Simplify right side
   6,616.49x = 51,179,101.37
5. Step 5: Solve for x
   x = 51,179,101.37/6,616.49
6. Step 6: Final answer
   x = 7,735.09