Finding the Fourth Proportional to 5,801.30, 8,003.30 and 3,914.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,801.30 : 8,003.30 = 3,914.10 : x
2. Step 2: Convert to fraction form
   5,801.30/8,003.30 = 3,914.10/x
3. Step 3: Cross multiply
   5,801.30x = 8,003.30 × 3,914.10
4. Step 4: Simplify right side
   5,801.30x = 31,325,716.53
5. Step 5: Solve for x
   x = 31,325,716.53/5,801.30
6. Step 6: Final answer
   x = 5,399.78