Finding the Fourth Proportional to 115,194.82, 158,949.60 and 64,196.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115,194.82 : 158,949.60 = 64,196.38 : x
2. Step 2: Convert to fraction form
   115,194.82/158,949.60 = 64,196.38/x
3. Step 3: Cross multiply
   115,194.82x = 158,949.60 × 64,196.38
4. Step 4: Simplify right side
   115,194.82x = 10,203,988,922.45
5. Step 5: Solve for x
   x = 10,203,988,922.45/115,194.82
6. Step 6: Final answer
   x = 88,580.28