Finding the Fourth Proportional to 6,857.56, 10,290.18 and 3,737.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,857.56 : 10,290.18 = 3,737.78 : x
2. Step 2: Convert to fraction form
   6,857.56/10,290.18 = 3,737.78/x
3. Step 3: Cross multiply
   6,857.56x = 10,290.18 × 3,737.78
4. Step 4: Simplify right side
   6,857.56x = 38,462,429.00
5. Step 5: Solve for x
   x = 38,462,429.00/6,857.56
6. Step 6: Final answer
   x = 5,608.76