Finding the Fourth Proportional to 113,005.89, 155,942.70 and 67,685.79

Step by Step Solution

1. Step 1: Write the proportion equation
   113,005.89 : 155,942.70 = 67,685.79 : x
2. Step 2: Convert to fraction form
   113,005.89/155,942.70 = 67,685.79/x
3. Step 3: Cross multiply
   113,005.89x = 155,942.70 × 67,685.79
4. Step 4: Simplify right side
   113,005.89x = 10,555,104,844.23
5. Step 5: Solve for x
   x = 10,555,104,844.23/113,005.89
6. Step 6: Final answer
   x = 93,403.14