Finding the Fourth Proportional to 6,856.56, 9,462.04 and 3,712.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,856.56 : 9,462.04 = 3,712.72 : x
2. Step 2: Convert to fraction form
   6,856.56/9,462.04 = 3,712.72/x
3. Step 3: Cross multiply
   6,856.56x = 9,462.04 × 3,712.72
4. Step 4: Simplify right side
   6,856.56x = 35,129,905.15
5. Step 5: Solve for x
   x = 35,129,905.15/6,856.56
6. Step 6: Final answer
   x = 5,123.55