Finding the Fourth Proportional to 8,540.47, 12,801.93 and 3,274.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,540.47 : 12,801.93 = 3,274.05 : x
2. Step 2: Convert to fraction form
   8,540.47/12,801.93 = 3,274.05/x
3. Step 3: Cross multiply
   8,540.47x = 12,801.93 × 3,274.05
4. Step 4: Simplify right side
   8,540.47x = 41,914,158.92
5. Step 5: Solve for x
   x = 41,914,158.92/8,540.47
6. Step 6: Final answer
   x = 4,907.71