Finding the Fourth Proportional to 8,540.32, 12,807.98 and 3,274.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,540.32 : 12,807.98 = 3,274.94 : x
2. Step 2: Convert to fraction form
   8,540.32/12,807.98 = 3,274.94/x
3. Step 3: Cross multiply
   8,540.32x = 12,807.98 × 3,274.94
4. Step 4: Simplify right side
   8,540.32x = 41,945,321.90
5. Step 5: Solve for x
   x = 41,945,321.90/8,540.32
6. Step 6: Final answer
   x = 4,911.45