Finding the Fourth Proportional to 11,540.45, 15,919.43 and 7,756.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,540.45 : 15,919.43 = 7,756.94 : x
2. Step 2: Convert to fraction form
   11,540.45/15,919.43 = 7,756.94/x
3. Step 3: Cross multiply
   11,540.45x = 15,919.43 × 7,756.94
4. Step 4: Simplify right side
   11,540.45x = 123,485,944.96
5. Step 5: Solve for x
   x = 123,485,944.96/11,540.45
6. Step 6: Final answer
   x = 10,700.28