Finding the Fourth Proportional to 6,912.29, 9,538.81 and 3,768.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,912.29 : 9,538.81 = 3,768.47 : x
2. Step 2: Convert to fraction form
   6,912.29/9,538.81 = 3,768.47/x
3. Step 3: Cross multiply
   6,912.29x = 9,538.81 × 3,768.47
4. Step 4: Simplify right side
   6,912.29x = 35,946,772.83
5. Step 5: Solve for x
   x = 35,946,772.83/6,912.29
6. Step 6: Final answer
   x = 5,200.42