Finding the Fourth Proportional to 113,007.89, 155,945.46 and 67,687.79

Step by Step Solution

1. Step 1: Write the proportion equation
   113,007.89 : 155,945.46 = 67,687.79 : x
2. Step 2: Convert to fraction form
   113,007.89/155,945.46 = 67,687.79/x
3. Step 3: Cross multiply
   113,007.89x = 155,945.46 × 67,687.79
4. Step 4: Simplify right side
   113,007.89x = 10,555,603,547.93
5. Step 5: Solve for x
   x = 10,555,603,547.93/113,007.89
6. Step 6: Final answer
   x = 93,405.90