Finding the Fourth Proportional to 11,966.86, 17,906.55 and 7,038.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,966.86 : 17,906.55 = 7,038.82 : x
2. Step 2: Convert to fraction form
   11,966.86/17,906.55 = 7,038.82/x
3. Step 3: Cross multiply
   11,966.86x = 17,906.55 × 7,038.82
4. Step 4: Simplify right side
   11,966.86x = 126,040,982.27
5. Step 5: Solve for x
   x = 126,040,982.27/11,966.86
6. Step 6: Final answer
   x = 10,532.50