Finding the Fourth Proportional to 10,820.16, 16,232.68 and 3,425.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.16 : 16,232.68 = 3,425.07 : x
2. Step 2: Convert to fraction form
   10,820.16/16,232.68 = 3,425.07/x
3. Step 3: Cross multiply
   10,820.16x = 16,232.68 × 3,425.07
4. Step 4: Simplify right side
   10,820.16x = 55,597,995.85
5. Step 5: Solve for x
   x = 55,597,995.85/10,820.16
6. Step 6: Final answer
   x = 5,138.37