Finding the Fourth Proportional to 7,031.56, 10,544.23 and 2,100.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.56 : 10,544.23 = 2,100.28 : x
2. Step 2: Convert to fraction form
   7,031.56/10,544.23 = 2,100.28/x
3. Step 3: Cross multiply
   7,031.56x = 10,544.23 × 2,100.28
4. Step 4: Simplify right side
   7,031.56x = 22,145,819.61
5. Step 5: Solve for x
   x = 22,145,819.61/7,031.56
6. Step 6: Final answer
   x = 3,149.49