Finding the Fourth Proportional to 6,090.22, 8,400.96 and 3,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,090.22 : 8,400.96 = 3,571.72 : x
2. Step 2: Convert to fraction form
   6,090.22/8,400.96 = 3,571.72/x
3. Step 3: Cross multiply
   6,090.22x = 8,400.96 × 3,571.72
4. Step 4: Simplify right side
   6,090.22x = 30,005,876.85
5. Step 5: Solve for x
   x = 30,005,876.85/6,090.22
6. Step 6: Final answer
   x = 4,926.90