Finding the Fourth Proportional to 11,789.78, 17,676.03 and 10,070.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.78 : 17,676.03 = 10,070.42 : x
2. Step 2: Convert to fraction form
   11,789.78/17,676.03 = 10,070.42/x
3. Step 3: Cross multiply
   11,789.78x = 17,676.03 × 10,070.42
4. Step 4: Simplify right side
   11,789.78x = 178,005,046.03
5. Step 5: Solve for x
   x = 178,005,046.03/11,789.78
6. Step 6: Final answer
   x = 15,098.25