Finding the Fourth Proportional to 8,443.72, 11,642.82 and 6,868.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.72 : 11,642.82 = 6,868.84 : x
2. Step 2: Convert to fraction form
   8,443.72/11,642.82 = 6,868.84/x
3. Step 3: Cross multiply
   8,443.72x = 11,642.82 × 6,868.84
4. Step 4: Simplify right side
   8,443.72x = 79,972,667.73
5. Step 5: Solve for x
   x = 79,972,667.73/8,443.72
6. Step 6: Final answer
   x = 9,471.26