Finding the Fourth Proportional to 11,806.43, 17,617.56 and 10,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,806.43 : 17,617.56 = 10,758.50 : x
2. Step 2: Convert to fraction form
   11,806.43/17,617.56 = 10,758.50/x
3. Step 3: Cross multiply
   11,806.43x = 17,617.56 × 10,758.50
4. Step 4: Simplify right side
   11,806.43x = 189,538,431.17
5. Step 5: Solve for x
   x = 189,538,431.17/11,806.43
6. Step 6: Final answer
   x = 16,053.83