Finding the Fourth Proportional to 11,992.05, 17,985 and 3,556.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,992.05 : 17,985 = 3,556.58 : x
2. Step 2: Convert to fraction form
   11,992.05/17,985 = 3,556.58/x
3. Step 3: Cross multiply
   11,992.05x = 17,985 × 3,556.58
4. Step 4: Simplify right side
   11,992.05x = 63,965,001.38
5. Step 5: Solve for x
   x = 63,965,001.38/11,992.05
6. Step 6: Final answer
   x = 5,333.95