Finding the Fourth Proportional to 11,776.05, 17,666.51 and 3,456.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,776.05 : 17,666.51 = 3,456.33 : x
2. Step 2: Convert to fraction form
   11,776.05/17,666.51 = 3,456.33/x
3. Step 3: Cross multiply
   11,776.05x = 17,666.51 × 3,456.33
4. Step 4: Simplify right side
   11,776.05x = 61,061,271.23
5. Step 5: Solve for x
   x = 61,061,271.23/11,776.05
6. Step 6: Final answer
   x = 5,185.21