Finding the Fourth Proportional to 3,856.01, 5,787.25 and 3,091.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.01 : 5,787.25 = 3,091.37 : x
2. Step 2: Convert to fraction form
   3,856.01/5,787.25 = 3,091.37/x
3. Step 3: Cross multiply
   3,856.01x = 5,787.25 × 3,091.37
4. Step 4: Simplify right side
   3,856.01x = 17,890,494.37
5. Step 5: Solve for x
   x = 17,890,494.37/3,856.01
6. Step 6: Final answer
   x = 4,639.65