Finding the Fourth Proportional to 6,914.73, 9,542.89 and 3,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,914.73 : 9,542.89 = 3,931.50 : x
2. Step 2: Convert to fraction form
   6,914.73/9,542.89 = 3,931.50/x
3. Step 3: Cross multiply
   6,914.73x = 9,542.89 × 3,931.50
4. Step 4: Simplify right side
   6,914.73x = 37,517,824.32
5. Step 5: Solve for x
   x = 37,517,824.32/6,914.73
6. Step 6: Final answer
   x = 5,425.79