Finding the Fourth Proportional to 6,407.27, 8,840.52 and 3,889.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,407.27 : 8,840.52 = 3,889.32 : x
2. Step 2: Convert to fraction form
   6,407.27/8,840.52 = 3,889.32/x
3. Step 3: Cross multiply
   6,407.27x = 8,840.52 × 3,889.32
4. Step 4: Simplify right side
   6,407.27x = 34,383,598.87
5. Step 5: Solve for x
   x = 34,383,598.87/6,407.27
6. Step 6: Final answer
   x = 5,366.34