Finding the Fourth Proportional to 8,541.74, 12,816.58 and 3,612.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,541.74 : 12,816.58 = 3,612.54 : x
2. Step 2: Convert to fraction form
   8,541.74/12,816.58 = 3,612.54/x
3. Step 3: Cross multiply
   8,541.74x = 12,816.58 × 3,612.54
4. Step 4: Simplify right side
   8,541.74x = 46,300,407.91
5. Step 5: Solve for x
   x = 46,300,407.91/8,541.74
6. Step 6: Final answer
   x = 5,420.49