Finding the Fourth Proportional to 5,336.29, 7,363.20 and 2,978.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,336.29 : 7,363.20 = 2,978.43 : x
2. Step 2: Convert to fraction form
   5,336.29/7,363.20 = 2,978.43/x
3. Step 3: Cross multiply
   5,336.29x = 7,363.20 × 2,978.43
4. Step 4: Simplify right side
   5,336.29x = 21,930,738.96
5. Step 5: Solve for x
   x = 21,930,738.96/5,336.29
6. Step 6: Final answer
   x = 4,109.74