Finding the Fourth Proportional to 5,419.77, 8,131.30 and 3,841.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.77 : 8,131.30 = 3,841.55 : x
2. Step 2: Convert to fraction form
   5,419.77/8,131.30 = 3,841.55/x
3. Step 3: Cross multiply
   5,419.77x = 8,131.30 × 3,841.55
4. Step 4: Simplify right side
   5,419.77x = 31,236,795.52
5. Step 5: Solve for x
   x = 31,236,795.52/5,419.77
6. Step 6: Final answer
   x = 5,763.49