Finding the Fourth Proportional to 11,664.88, 16,053.88 and 10,720.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,664.88 : 16,053.88 = 10,720.72 : x
2. Step 2: Convert to fraction form
   11,664.88/16,053.88 = 10,720.72/x
3. Step 3: Cross multiply
   11,664.88x = 16,053.88 × 10,720.72
4. Step 4: Simplify right side
   11,664.88x = 172,109,152.39
5. Step 5: Solve for x
   x = 172,109,152.39/11,664.88
6. Step 6: Final answer
   x = 14,754.47