Finding the Fourth Proportional to 10,755.81, 16,133.69 and 7,057.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,755.81 : 16,133.69 = 7,057.16 : x
2. Step 2: Convert to fraction form
   10,755.81/16,133.69 = 7,057.16/x
3. Step 3: Cross multiply
   10,755.81x = 16,133.69 × 7,057.16
4. Step 4: Simplify right side
   10,755.81x = 113,858,031.72
5. Step 5: Solve for x
   x = 113,858,031.72/10,755.81
6. Step 6: Final answer
   x = 10,585.72