Finding the Fourth Proportional to 10,936.76, 15,105.32 and 7,965.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.76 : 15,105.32 = 7,965.88 : x
2. Step 2: Convert to fraction form
   10,936.76/15,105.32 = 7,965.88/x
3. Step 3: Cross multiply
   10,936.76x = 15,105.32 × 7,965.88
4. Step 4: Simplify right side
   10,936.76x = 120,327,166.48
5. Step 5: Solve for x
   x = 120,327,166.48/10,936.76
6. Step 6: Final answer
   x = 11,002.09