Finding the Fourth Proportional to 4,847.39, 7,272.69 and 3,979.43

Step by Step Solution

1. Step 1: Write the proportion equation
   4,847.39 : 7,272.69 = 3,979.43 : x
2. Step 2: Convert to fraction form
   4,847.39/7,272.69 = 3,979.43/x
3. Step 3: Cross multiply
   4,847.39x = 7,272.69 × 3,979.43
4. Step 4: Simplify right side
   4,847.39x = 28,941,136.75
5. Step 5: Solve for x
   x = 28,941,136.75/4,847.39
6. Step 6: Final answer
   x = 5,970.45