Finding the Fourth Proportional to 6,174.72, 8,520.96 and 3,380.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,174.72 : 8,520.96 = 3,380.16 : x
2. Step 2: Convert to fraction form
   6,174.72/8,520.96 = 3,380.16/x
3. Step 3: Cross multiply
   6,174.72x = 8,520.96 × 3,380.16
4. Step 4: Simplify right side
   6,174.72x = 28,802,208.15
5. Step 5: Solve for x
   x = 28,802,208.15/6,174.72
6. Step 6: Final answer
   x = 4,664.54