Finding the Fourth Proportional to 11,906.69, 16,427.96 and 7,124.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,906.69 : 16,427.96 = 7,124.69 : x
2. Step 2: Convert to fraction form
   11,906.69/16,427.96 = 7,124.69/x
3. Step 3: Cross multiply
   11,906.69x = 16,427.96 × 7,124.69
4. Step 4: Simplify right side
   11,906.69x = 117,044,004.57
5. Step 5: Solve for x
   x = 117,044,004.57/11,906.69
6. Step 6: Final answer
   x = 9,830.11