Finding the Fourth Proportional to 10,249.81, 14,142.31 and 5,772.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,249.81 : 14,142.31 = 5,772.67 : x
2. Step 2: Convert to fraction form
   10,249.81/14,142.31 = 5,772.67/x
3. Step 3: Cross multiply
   10,249.81x = 14,142.31 × 5,772.67
4. Step 4: Simplify right side
   10,249.81x = 81,638,888.67
5. Step 5: Solve for x
   x = 81,638,888.67/10,249.81
6. Step 6: Final answer
   x = 7,964.92