Finding the Fourth Proportional to 5,878.94, 8,109.86 and 3,640.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,878.94 : 8,109.86 = 3,640.10 : x
2. Step 2: Convert to fraction form
   5,878.94/8,109.86 = 3,640.10/x
3. Step 3: Cross multiply
   5,878.94x = 8,109.86 × 3,640.10
4. Step 4: Simplify right side
   5,878.94x = 29,520,701.39
5. Step 5: Solve for x
   x = 29,520,701.39/5,878.94
6. Step 6: Final answer
   x = 5,021.43