Finding the Fourth Proportional to 5,814.89, 8,019.02 and 3,926.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,814.89 : 8,019.02 = 3,926.78 : x
2. Step 2: Convert to fraction form
   5,814.89/8,019.02 = 3,926.78/x
3. Step 3: Cross multiply
   5,814.89x = 8,019.02 × 3,926.78
4. Step 4: Simplify right side
   5,814.89x = 31,488,867.63
5. Step 5: Solve for x
   x = 31,488,867.63/5,814.89
6. Step 6: Final answer
   x = 5,415.22