Finding the Fourth Proportional to 5,805.55, 8,013.95 and 3,918.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,805.55 : 8,013.95 = 3,918.25 : x
2. Step 2: Convert to fraction form
   5,805.55/8,013.95 = 3,918.25/x
3. Step 3: Cross multiply
   5,805.55x = 8,013.95 × 3,918.25
4. Step 4: Simplify right side
   5,805.55x = 31,400,659.59
5. Step 5: Solve for x
   x = 31,400,659.59/5,805.55
6. Step 6: Final answer
   x = 5,408.73