Finding the Fourth Proportional to 5,419.82, 8,129.61 and 2,498.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.82 : 8,129.61 = 2,498.12 : x
2. Step 2: Convert to fraction form
   5,419.82/8,129.61 = 2,498.12/x
3. Step 3: Cross multiply
   5,419.82x = 8,129.61 × 2,498.12
4. Step 4: Simplify right side
   5,419.82x = 20,308,771.03
5. Step 5: Solve for x
   x = 20,308,771.03/5,419.82
6. Step 6: Final answer
   x = 3,747.13