Finding the Fourth Proportional to 11,738.16, 17,519.04 and 10,149.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,738.16 : 17,519.04 = 10,149.87 : x
2. Step 2: Convert to fraction form
   11,738.16/17,519.04 = 10,149.87/x
3. Step 3: Cross multiply
   11,738.16x = 17,519.04 × 10,149.87
4. Step 4: Simplify right side
   11,738.16x = 177,815,978.52
5. Step 5: Solve for x
   x = 177,815,978.52/11,738.16
6. Step 6: Final answer
   x = 15,148.54