Finding the Fourth Proportional to 16,540.63, 22,812.86 and 10,881.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,540.63 : 22,812.86 = 10,881.20 : x
2. Step 2: Convert to fraction form
   16,540.63/22,812.86 = 10,881.20/x
3. Step 3: Cross multiply
   16,540.63x = 22,812.86 × 10,881.20
4. Step 4: Simplify right side
   16,540.63x = 248,231,294.86
5. Step 5: Solve for x
   x = 248,231,294.86/16,540.63
6. Step 6: Final answer
   x = 15,007.37