Finding the Fourth Proportional to 11,131.49, 16,685.69 and 6,961.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.49 : 16,685.69 = 6,961.92 : x
2. Step 2: Convert to fraction form
   11,131.49/16,685.69 = 6,961.92/x
3. Step 3: Cross multiply
   11,131.49x = 16,685.69 × 6,961.92
4. Step 4: Simplify right side
   11,131.49x = 116,164,404.12
5. Step 5: Solve for x
   x = 116,164,404.12/11,131.49
6. Step 6: Final answer
   x = 10,435.66