Finding the Fourth Proportional to 10,820.30, 16,231.05 and 3,029.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.30 : 16,231.05 = 3,029.72 : x
2. Step 2: Convert to fraction form
   10,820.30/16,231.05 = 3,029.72/x
3. Step 3: Cross multiply
   10,820.30x = 16,231.05 × 3,029.72
4. Step 4: Simplify right side
   10,820.30x = 49,175,536.81
5. Step 5: Solve for x
   x = 49,175,536.81/10,820.30
6. Step 6: Final answer
   x = 4,544.75