Finding the Fourth Proportional to 7,236.42, 10,856.25 and 3,947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,236.42 : 10,856.25 = 3,947.82 : x
2. Step 2: Convert to fraction form
   7,236.42/10,856.25 = 3,947.82/x
3. Step 3: Cross multiply
   7,236.42x = 10,856.25 × 3,947.82
4. Step 4: Simplify right side
   7,236.42x = 42,858,520.88
5. Step 5: Solve for x
   x = 42,858,520.88/7,236.42
6. Step 6: Final answer
   x = 5,922.61