Finding the Fourth Proportional to 7,046.21, 9,722.90 and 3,902.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,046.21 : 9,722.90 = 3,902.42 : x
2. Step 2: Convert to fraction form
   7,046.21/9,722.90 = 3,902.42/x
3. Step 3: Cross multiply
   7,046.21x = 9,722.90 × 3,902.42
4. Step 4: Simplify right side
   7,046.21x = 37,942,819.91
5. Step 5: Solve for x
   x = 37,942,819.91/7,046.21
6. Step 6: Final answer
   x = 5,384.86