Finding the Fourth Proportional to 6,642.57, 9,970.01 and 3,357.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,642.57 : 9,970.01 = 3,357.98 : x
2. Step 2: Convert to fraction form
   6,642.57/9,970.01 = 3,357.98/x
3. Step 3: Cross multiply
   6,642.57x = 9,970.01 × 3,357.98
4. Step 4: Simplify right side
   6,642.57x = 33,479,052.72
5. Step 5: Solve for x
   x = 33,479,052.72/6,642.57
6. Step 6: Final answer
   x = 5,040.08