Finding the Fourth Proportional to 3,242.72, 4,473.40 and 3,116.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,242.72 : 4,473.40 = 3,116.98 : x
2. Step 2: Convert to fraction form
   3,242.72/4,473.40 = 3,116.98/x
3. Step 3: Cross multiply
   3,242.72x = 4,473.40 × 3,116.98
4. Step 4: Simplify right side
   3,242.72x = 13,943,498.33
5. Step 5: Solve for x
   x = 13,943,498.33/3,242.72
6. Step 6: Final answer
   x = 4,299.94