Finding the Fourth Proportional to 10,820.78, 16,233.03 and 3,425.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.78 : 16,233.03 = 3,425.12 : x
2. Step 2: Convert to fraction form
   10,820.78/16,233.03 = 3,425.12/x
3. Step 3: Cross multiply
   10,820.78x = 16,233.03 × 3,425.12
4. Step 4: Simplify right side
   10,820.78x = 55,600,075.71
5. Step 5: Solve for x
   x = 55,600,075.71/10,820.78
6. Step 6: Final answer
   x = 5,138.27