Finding the Fourth Proportional to 6,989.79, 9,646.38 and 3,846.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,989.79 : 9,646.38 = 3,846.18 : x
2. Step 2: Convert to fraction form
   6,989.79/9,646.38 = 3,846.18/x
3. Step 3: Cross multiply
   6,989.79x = 9,646.38 × 3,846.18
4. Step 4: Simplify right side
   6,989.79x = 37,101,713.83
5. Step 5: Solve for x
   x = 37,101,713.83/6,989.79
6. Step 6: Final answer
   x = 5,307.99