Finding the Fourth Proportional to 11,685.61, 17,444.24 and 10,855.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,685.61 : 17,444.24 = 10,855.24 : x
2. Step 2: Convert to fraction form
   11,685.61/17,444.24 = 10,855.24/x
3. Step 3: Cross multiply
   11,685.61x = 17,444.24 × 10,855.24
4. Step 4: Simplify right side
   11,685.61x = 189,361,411.82
5. Step 5: Solve for x
   x = 189,361,411.82/11,685.61
6. Step 6: Final answer
   x = 16,204.67