Finding the Fourth Proportional to 10,698.26, 15,976.31 and 10,582.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,698.26 : 15,976.31 = 10,582.42 : x
2. Step 2: Convert to fraction form
   10,698.26/15,976.31 = 10,582.42/x
3. Step 3: Cross multiply
   10,698.26x = 15,976.31 × 10,582.42
4. Step 4: Simplify right side
   10,698.26x = 169,067,969.56
5. Step 5: Solve for x
   x = 169,067,969.56/10,698.26
6. Step 6: Final answer
   x = 15,803.31