Finding the Fourth Proportional to 10,821.33, 16,241.18 and 4,252.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.33 : 16,241.18 = 4,252.10 : x
2. Step 2: Convert to fraction form
   10,821.33/16,241.18 = 4,252.10/x
3. Step 3: Cross multiply
   10,821.33x = 16,241.18 × 4,252.10
4. Step 4: Simplify right side
   10,821.33x = 69,059,019.01
5. Step 5: Solve for x
   x = 69,059,019.01/10,821.33
6. Step 6: Final answer
   x = 6,381.75