Finding the Fourth Proportional to 113,286.78, 170,105.61 and 60,798.78

Step by Step Solution

1. Step 1: Write the proportion equation
   113,286.78 : 170,105.61 = 60,798.78 : x
2. Step 2: Convert to fraction form
   113,286.78/170,105.61 = 60,798.78/x
3. Step 3: Cross multiply
   113,286.78x = 170,105.61 × 60,798.78
4. Step 4: Simplify right side
   113,286.78x = 10,342,213,559.16
5. Step 5: Solve for x
   x = 10,342,213,559.16/113,286.78
6. Step 6: Final answer
   x = 91,292.33