Finding the Fourth Proportional to 6,223.89, 8,590.23 and 3,573.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,223.89 : 8,590.23 = 3,573.12 : x
2. Step 2: Convert to fraction form
   6,223.89/8,590.23 = 3,573.12/x
3. Step 3: Cross multiply
   6,223.89x = 8,590.23 × 3,573.12
4. Step 4: Simplify right side
   6,223.89x = 30,693,922.62
5. Step 5: Solve for x
   x = 30,693,922.62/6,223.89
6. Step 6: Final answer
   x = 4,931.63