Finding the Fourth Proportional to 8,541.47, 12,816.15 and 3,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,541.47 : 12,816.15 = 3,274.72 : x
2. Step 2: Convert to fraction form
   8,541.47/12,816.15 = 3,274.72/x
3. Step 3: Cross multiply
   8,541.47x = 12,816.15 × 3,274.72
4. Step 4: Simplify right side
   8,541.47x = 41,969,238.65
5. Step 5: Solve for x
   x = 41,969,238.65/8,541.47
6. Step 6: Final answer
   x = 4,913.59