Finding the Fourth Proportional to 11,085.21, 16,562.86 and 10,697.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.21 : 16,562.86 = 10,697.62 : x
2. Step 2: Convert to fraction form
   11,085.21/16,562.86 = 10,697.62/x
3. Step 3: Cross multiply
   11,085.21x = 16,562.86 × 10,697.62
4. Step 4: Simplify right side
   11,085.21x = 177,183,182.39
5. Step 5: Solve for x
   x = 177,183,182.39/11,085.21
6. Step 6: Final answer
   x = 15,983.75