Finding the Fourth Proportional to 11,650.72, 16,080.16 and 10,938.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,650.72 : 16,080.16 = 10,938.58 : x
2. Step 2: Convert to fraction form
   11,650.72/16,080.16 = 10,938.58/x
3. Step 3: Cross multiply
   11,650.72x = 16,080.16 × 10,938.58
4. Step 4: Simplify right side
   11,650.72x = 175,894,116.57
5. Step 5: Solve for x
   x = 175,894,116.57/11,650.72
6. Step 6: Final answer
   x = 15,097.27