Finding the Fourth Proportional to 11,664.84, 17,488.22 and 7,957.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,664.84 : 17,488.22 = 7,957.96 : x
2. Step 2: Convert to fraction form
   11,664.84/17,488.22 = 7,957.96/x
3. Step 3: Cross multiply
   11,664.84x = 17,488.22 × 7,957.96
4. Step 4: Simplify right side
   11,664.84x = 139,170,555.23
5. Step 5: Solve for x
   x = 139,170,555.23/11,664.84
6. Step 6: Final answer
   x = 11,930.77