Finding the Fourth Proportional to 6,648.74, 9,976.52 and 4,570.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,648.74 : 9,976.52 = 4,570.42 : x
2. Step 2: Convert to fraction form
   6,648.74/9,976.52 = 4,570.42/x
3. Step 3: Cross multiply
   6,648.74x = 9,976.52 × 4,570.42
4. Step 4: Simplify right side
   6,648.74x = 45,596,886.54
5. Step 5: Solve for x
   x = 45,596,886.54/6,648.74
6. Step 6: Final answer
   x = 6,857.97