Finding the Fourth Proportional to 8,274.78, 12,412.37 and 2,431.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,274.78 : 12,412.37 = 2,431.58 : x
2. Step 2: Convert to fraction form
   8,274.78/12,412.37 = 2,431.58/x
3. Step 3: Cross multiply
   8,274.78x = 12,412.37 × 2,431.58
4. Step 4: Simplify right side
   8,274.78x = 30,181,614.66
5. Step 5: Solve for x
   x = 30,181,614.66/8,274.78
6. Step 6: Final answer
   x = 3,647.42