Finding the Fourth Proportional to 5,978.60, 8,250.73 and 4,982.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.60 : 8,250.73 = 4,982.21 : x
2. Step 2: Convert to fraction form
   5,978.60/8,250.73 = 4,982.21/x
3. Step 3: Cross multiply
   5,978.60x = 8,250.73 × 4,982.21
4. Step 4: Simplify right side
   5,978.60x = 41,106,815.80
5. Step 5: Solve for x
   x = 41,106,815.80/5,978.60
6. Step 6: Final answer
   x = 6,875.66