Finding the Fourth Proportional to 11,736.89, 16,196.81 and 6,431.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,736.89 : 16,196.81 = 6,431.69 : x
2. Step 2: Convert to fraction form
   11,736.89/16,196.81 = 6,431.69/x
3. Step 3: Cross multiply
   11,736.89x = 16,196.81 × 6,431.69
4. Step 4: Simplify right side
   11,736.89x = 104,172,747.77
5. Step 5: Solve for x
   x = 104,172,747.77/11,736.89
6. Step 6: Final answer
   x = 8,875.67