Finding the Fourth Proportional to 119,256.78, 164,578.06 and 65,540.82

Step by Step Solution

1. Step 1: Write the proportion equation
   119,256.78 : 164,578.06 = 65,540.82 : x
2. Step 2: Convert to fraction form
   119,256.78/164,578.06 = 65,540.82/x
3. Step 3: Cross multiply
   119,256.78x = 164,578.06 × 65,540.82
4. Step 4: Simplify right side
   119,256.78x = 10,786,581,006.41
5. Step 5: Solve for x
   x = 10,786,581,006.41/119,256.78
6. Step 6: Final answer
   x = 90,448.37