Finding the Fourth Proportional to 6,926.76, 9,558.60 and 3,942.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,926.76 : 9,558.60 = 3,942.72 : x
2. Step 2: Convert to fraction form
   6,926.76/9,558.60 = 3,942.72/x
3. Step 3: Cross multiply
   6,926.76x = 9,558.60 × 3,942.72
4. Step 4: Simplify right side
   6,926.76x = 37,686,883.39
5. Step 5: Solve for x
   x = 37,686,883.39/6,926.76
6. Step 6: Final answer
   x = 5,440.77