Finding the Fourth Proportional to 8,350.72, 11,576.72 and 7,906.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,350.72 : 11,576.72 = 7,906.80 : x
2. Step 2: Convert to fraction form
   8,350.72/11,576.72 = 7,906.80/x
3. Step 3: Cross multiply
   8,350.72x = 11,576.72 × 7,906.80
4. Step 4: Simplify right side
   8,350.72x = 91,534,809.70
5. Step 5: Solve for x
   x = 91,534,809.70/8,350.72
6. Step 6: Final answer
   x = 10,961.31