Finding the Fourth Proportional to 6,223.93, 8,590.01 and 3,985.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,223.93 : 8,590.01 = 3,985.69 : x
2. Step 2: Convert to fraction form
   6,223.93/8,590.01 = 3,985.69/x
3. Step 3: Cross multiply
   6,223.93x = 8,590.01 × 3,985.69
4. Step 4: Simplify right side
   6,223.93x = 34,237,116.96
5. Step 5: Solve for x
   x = 34,237,116.96/6,223.93
6. Step 6: Final answer
   x = 5,500.88