Finding the Fourth Proportional to 4,068.50, 5,609.10 and 3,231.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,068.50 : 5,609.10 = 3,231.98 : x
2. Step 2: Convert to fraction form
   4,068.50/5,609.10 = 3,231.98/x
3. Step 3: Cross multiply
   4,068.50x = 5,609.10 × 3,231.98
4. Step 4: Simplify right side
   4,068.50x = 18,128,499.02
5. Step 5: Solve for x
   x = 18,128,499.02/4,068.50
6. Step 6: Final answer
   x = 4,455.82