Finding the Fourth Proportional to 11,105.87, 15,305.01 and 7,956.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.87 : 15,305.01 = 7,956.59 : x
2. Step 2: Convert to fraction form
   11,105.87/15,305.01 = 7,956.59/x
3. Step 3: Cross multiply
   11,105.87x = 15,305.01 × 7,956.59
4. Step 4: Simplify right side
   11,105.87x = 121,775,689.52
5. Step 5: Solve for x
   x = 121,775,689.52/11,105.87
6. Step 6: Final answer
   x = 10,964.98