Finding the Fourth Proportional to 10,956.10, 16,434.42 and 3,936.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.10 : 16,434.42 = 3,936.58 : x
2. Step 2: Convert to fraction form
   10,956.10/16,434.42 = 3,936.58/x
3. Step 3: Cross multiply
   10,956.10x = 16,434.42 × 3,936.58
4. Step 4: Simplify right side
   10,956.10x = 64,695,409.08
5. Step 5: Solve for x
   x = 64,695,409.08/10,956.10
6. Step 6: Final answer
   x = 5,904.97