Finding the Fourth Proportional to 10,819.84, 16,228.48 and 4,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.84 : 16,228.48 = 4,974.72 : x
2. Step 2: Convert to fraction form
   10,819.84/16,228.48 = 4,974.72/x
3. Step 3: Cross multiply
   10,819.84x = 16,228.48 × 4,974.72
4. Step 4: Simplify right side
   10,819.84x = 80,732,144.03
5. Step 5: Solve for x
   x = 80,732,144.03/10,819.84
6. Step 6: Final answer
   x = 7,461.49