Finding the Fourth Proportional to 113,648.81, 170,522.37 and 60,996.78

Step by Step Solution

1. Step 1: Write the proportion equation
   113,648.81 : 170,522.37 = 60,996.78 : x
2. Step 2: Convert to fraction form
   113,648.81/170,522.37 = 60,996.78/x
3. Step 3: Cross multiply
   113,648.81x = 170,522.37 × 60,996.78
4. Step 4: Simplify right side
   113,648.81x = 10,401,315,487.97
5. Step 5: Solve for x
   x = 10,401,315,487.97/113,648.81
6. Step 6: Final answer
   x = 91,521.56