Finding the Fourth Proportional to 11,521.36, 17,291.76 and 7,961.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,521.36 : 17,291.76 = 7,961.41 : x
2. Step 2: Convert to fraction form
   11,521.36/17,291.76 = 7,961.41/x
3. Step 3: Cross multiply
   11,521.36x = 17,291.76 × 7,961.41
4. Step 4: Simplify right side
   11,521.36x = 137,666,664.72
5. Step 5: Solve for x
   x = 137,666,664.72/11,521.36
6. Step 6: Final answer
   x = 11,948.83