Finding the Fourth Proportional to 6,129.78, 8,467.71 and 5,466.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,129.78 : 8,467.71 = 5,466.42 : x
2. Step 2: Convert to fraction form
   6,129.78/8,467.71 = 5,466.42/x
3. Step 3: Cross multiply
   6,129.78x = 8,467.71 × 5,466.42
4. Step 4: Simplify right side
   6,129.78x = 46,288,059.30
5. Step 5: Solve for x
   x = 46,288,059.30/6,129.78
6. Step 6: Final answer
   x = 7,551.34