Finding the Fourth Proportional to 11,105.42, 15,304.28 and 7,956.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.42 : 15,304.28 = 7,956.14 : x
2. Step 2: Convert to fraction form
   11,105.42/15,304.28 = 7,956.14/x
3. Step 3: Cross multiply
   11,105.42x = 15,304.28 × 7,956.14
4. Step 4: Simplify right side
   11,105.42x = 121,762,877.98
5. Step 5: Solve for x
   x = 121,762,877.98/11,105.42
6. Step 6: Final answer
   x = 10,964.28