Finding the Fourth Proportional to 5,237.04, 7,218.72 and 3,973.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,237.04 : 7,218.72 = 3,973.98 : x
2. Step 2: Convert to fraction form
   5,237.04/7,218.72 = 3,973.98/x
3. Step 3: Cross multiply
   5,237.04x = 7,218.72 × 3,973.98
4. Step 4: Simplify right side
   5,237.04x = 28,687,048.91
5. Step 5: Solve for x
   x = 28,687,048.91/5,237.04
6. Step 6: Final answer
   x = 5,477.72