Finding the Fourth Proportional to 3,970.62, 5,471.91 and 3,873.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970.62 : 5,471.91 = 3,873.42 : x
2. Step 2: Convert to fraction form
   3,970.62/5,471.91 = 3,873.42/x
3. Step 3: Cross multiply
   3,970.62x = 5,471.91 × 3,873.42
4. Step 4: Simplify right side
   3,970.62x = 21,195,005.63
5. Step 5: Solve for x
   x = 21,195,005.63/3,970.62
6. Step 6: Final answer
   x = 5,337.96