Finding the Fourth Proportional to 11,042.38, 16,560.20 and 3,145.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,042.38 : 16,560.20 = 3,145.54 : x
2. Step 2: Convert to fraction form
   11,042.38/16,560.20 = 3,145.54/x
3. Step 3: Cross multiply
   11,042.38x = 16,560.20 × 3,145.54
4. Step 4: Simplify right side
   11,042.38x = 52,090,714.38
5. Step 5: Solve for x
   x = 52,090,714.38/11,042.38
6. Step 6: Final answer
   x = 4,717.35