Finding the Fourth Proportional to 11,653.98, 17,442.18 and 10,616.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,653.98 : 17,442.18 = 10,616.37 : x
2. Step 2: Convert to fraction form
   11,653.98/17,442.18 = 10,616.37/x
3. Step 3: Cross multiply
   11,653.98x = 17,442.18 × 10,616.37
4. Step 4: Simplify right side
   11,653.98x = 185,172,636.49
5. Step 5: Solve for x
   x = 185,172,636.49/11,653.98
6. Step 6: Final answer
   x = 15,889.22