Finding the Fourth Proportional to 11,120.72, 16,599.94 and 10,298.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,120.72 : 16,599.94 = 10,298.48 : x
2. Step 2: Convert to fraction form
   11,120.72/16,599.94 = 10,298.48/x
3. Step 3: Cross multiply
   11,120.72x = 16,599.94 × 10,298.48
4. Step 4: Simplify right side
   11,120.72x = 170,954,150.09
5. Step 5: Solve for x
   x = 170,954,150.09/11,120.72
6. Step 6: Final answer
   x = 15,372.58