Finding the Fourth Proportional to 11,773.41, 17,642.42 and 10,662.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,773.41 : 17,642.42 = 10,662.09 : x
2. Step 2: Convert to fraction form
   11,773.41/17,642.42 = 10,662.09/x
3. Step 3: Cross multiply
   11,773.41x = 17,642.42 × 10,662.09
4. Step 4: Simplify right side
   11,773.41x = 188,105,069.86
5. Step 5: Solve for x
   x = 188,105,069.86/11,773.41
6. Step 6: Final answer
   x = 15,977.11