Finding the Fourth Proportional to 5,168.94, 7,136.56 and 3,971.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.94 : 7,136.56 = 3,971.82 : x
2. Step 2: Convert to fraction form
   5,168.94/7,136.56 = 3,971.82/x
3. Step 3: Cross multiply
   5,168.94x = 7,136.56 × 3,971.82
4. Step 4: Simplify right side
   5,168.94x = 28,345,131.74
5. Step 5: Solve for x
   x = 28,345,131.74/5,168.94
6. Step 6: Final answer
   x = 5,483.74