Finding the Fourth Proportional to 11,353.49, 17,042.60 and 8,610.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,353.49 : 17,042.60 = 8,610.15 : x
2. Step 2: Convert to fraction form
   11,353.49/17,042.60 = 8,610.15/x
3. Step 3: Cross multiply
   11,353.49x = 17,042.60 × 8,610.15
4. Step 4: Simplify right side
   11,353.49x = 146,739,299.34
5. Step 5: Solve for x
   x = 146,739,299.34/11,353.49
6. Step 6: Final answer
   x = 12,924.60