Finding the Fourth Proportional to 5,902.86, 8,144.91 and 3,545.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902.86 : 8,144.91 = 3,545.05 : x
2. Step 2: Convert to fraction form
   5,902.86/8,144.91 = 3,545.05/x
3. Step 3: Cross multiply
   5,902.86x = 8,144.91 × 3,545.05
4. Step 4: Simplify right side
   5,902.86x = 28,874,113.20
5. Step 5: Solve for x
   x = 28,874,113.20/5,902.86
6. Step 6: Final answer
   x = 4,891.55