Finding the Fourth Proportional to 16,961.34, 23,409.39 and 9,886.41

Step by Step Solution

1. Step 1: Write the proportion equation
   16,961.34 : 23,409.39 = 9,886.41 : x
2. Step 2: Convert to fraction form
   16,961.34/23,409.39 = 9,886.41/x
3. Step 3: Cross multiply
   16,961.34x = 23,409.39 × 9,886.41
4. Step 4: Simplify right side
   16,961.34x = 231,434,827.39
5. Step 5: Solve for x
   x = 231,434,827.39/16,961.34
6. Step 6: Final answer
   x = 13,644.84