Finding the Fourth Proportional to 9,155.95, 13,724.35 and 4,228.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.95 : 13,724.35 = 4,228.82 : x
2. Step 2: Convert to fraction form
   9,155.95/13,724.35 = 4,228.82/x
3. Step 3: Cross multiply
   9,155.95x = 13,724.35 × 4,228.82
4. Step 4: Simplify right side
   9,155.95x = 58,037,879.03
5. Step 5: Solve for x
   x = 58,037,879.03/9,155.95
6. Step 6: Final answer
   x = 6,338.81