Finding the Fourth Proportional to 5,074.59, 7,003.08 and 2,978.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,074.59 : 7,003.08 = 2,978.73 : x
2. Step 2: Convert to fraction form
   5,074.59/7,003.08 = 2,978.73/x
3. Step 3: Cross multiply
   5,074.59x = 7,003.08 × 2,978.73
4. Step 4: Simplify right side
   5,074.59x = 20,860,284.49
5. Step 5: Solve for x
   x = 20,860,284.49/5,074.59
6. Step 6: Final answer
   x = 4,110.73