Finding the Fourth Proportional to 6,243.90, 8,613.90 and 4,005.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243.90 : 8,613.90 = 4,005.06 : x
2. Step 2: Convert to fraction form
   6,243.90/8,613.90 = 4,005.06/x
3. Step 3: Cross multiply
   6,243.90x = 8,613.90 × 4,005.06
4. Step 4: Simplify right side
   6,243.90x = 34,499,186.33
5. Step 5: Solve for x
   x = 34,499,186.33/6,243.90
6. Step 6: Final answer
   x = 5,525.26