Finding the Fourth Proportional to 4,789.80, 6,611.09 and 3,196.53

Step by Step Solution

1. Step 1: Write the proportion equation
   4,789.80 : 6,611.09 = 3,196.53 : x
2. Step 2: Convert to fraction form
   4,789.80/6,611.09 = 3,196.53/x
3. Step 3: Cross multiply
   4,789.80x = 6,611.09 × 3,196.53
4. Step 4: Simplify right side
   4,789.80x = 21,132,531.54
5. Step 5: Solve for x
   x = 21,132,531.54/4,789.80
6. Step 6: Final answer
   x = 4,411.99