Finding the Fourth Proportional to 6,990.88, 9,647.41 and 3,847.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,990.88 : 9,647.41 = 3,847.00 : x
2. Step 2: Convert to fraction form
   6,990.88/9,647.41 = 3,847.00/x
3. Step 3: Cross multiply
   6,990.88x = 9,647.41 × 3,847.00
4. Step 4: Simplify right side
   6,990.88x = 37,113,538.03
5. Step 5: Solve for x
   x = 37,113,538.03/6,990.88
6. Step 6: Final answer
   x = 5,308.85