Finding the Fourth Proportional to 115,401.63, 159,253.05 and 67,645.75

Step by Step Solution

1. Step 1: Write the proportion equation
   115,401.63 : 159,253.05 = 67,645.75 : x
2. Step 2: Convert to fraction form
   115,401.63/159,253.05 = 67,645.75/x
3. Step 3: Cross multiply
   115,401.63x = 159,253.05 × 67,645.75
4. Step 4: Simplify right side
   115,401.63x = 10,772,792,007.04
5. Step 5: Solve for x
   x = 10,772,792,007.04/115,401.63
6. Step 6: Final answer
   x = 93,350.43