Finding the Fourth Proportional to 5,920.24, 8,168.47 and 3,620.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,920.24 : 8,168.47 = 3,620.05 : x
2. Step 2: Convert to fraction form
   5,920.24/8,168.47 = 3,620.05/x
3. Step 3: Cross multiply
   5,920.24x = 8,168.47 × 3,620.05
4. Step 4: Simplify right side
   5,920.24x = 29,570,269.82
5. Step 5: Solve for x
   x = 29,570,269.82/5,920.24
6. Step 6: Final answer
   x = 4,994.78