Finding the Fourth Proportional to 11,645.41, 17,458.89 and 10,851.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,645.41 : 17,458.89 = 10,851.94 : x
2. Step 2: Convert to fraction form
   11,645.41/17,458.89 = 10,851.94/x
3. Step 3: Cross multiply
   11,645.41x = 17,458.89 × 10,851.94
4. Step 4: Simplify right side
   11,645.41x = 189,462,868.92
5. Step 5: Solve for x
   x = 189,462,868.92/11,645.41
6. Step 6: Final answer
   x = 16,269.31