Finding the Fourth Proportional to 10,731.36, 16,066.32 and 7,262.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,731.36 : 16,066.32 = 7,262.40 : x
2. Step 2: Convert to fraction form
   10,731.36/16,066.32 = 7,262.40/x
3. Step 3: Cross multiply
   10,731.36x = 16,066.32 × 7,262.40
4. Step 4: Simplify right side
   10,731.36x = 116,680,042.37
5. Step 5: Solve for x
   x = 116,680,042.37/10,731.36
6. Step 6: Final answer
   x = 10,872.81