Finding the Fourth Proportional to 22,456.82, 33,688.30 and 7,661.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456.82 : 33,688.30 = 7,661.76 : x
2. Step 2: Convert to fraction form
   22,456.82/33,688.30 = 7,661.76/x
3. Step 3: Cross multiply
   22,456.82x = 33,688.30 × 7,661.76
4. Step 4: Simplify right side
   22,456.82x = 258,111,669.41
5. Step 5: Solve for x
   x = 258,111,669.41/22,456.82
6. Step 6: Final answer
   x = 11,493.69