Finding the Fourth Proportional to 11,646.72, 17,499.27 and 10,946.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,646.72 : 17,499.27 = 10,946.88 : x
2. Step 2: Convert to fraction form
   11,646.72/17,499.27 = 10,946.88/x
3. Step 3: Cross multiply
   11,646.72x = 17,499.27 × 10,946.88
4. Step 4: Simplify right side
   11,646.72x = 191,562,408.78
5. Step 5: Solve for x
   x = 191,562,408.78/11,646.72
6. Step 6: Final answer
   x = 16,447.76