Finding the Fourth Proportional to 11,644.69, 16,073.72 and 6,928.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,644.69 : 16,073.72 = 6,928.87 : x
2. Step 2: Convert to fraction form
   11,644.69/16,073.72 = 6,928.87/x
3. Step 3: Cross multiply
   11,644.69x = 16,073.72 × 6,928.87
4. Step 4: Simplify right side
   11,644.69x = 111,372,667.45
5. Step 5: Solve for x
   x = 111,372,667.45/11,644.69
6. Step 6: Final answer
   x = 9,564.25