Finding the Fourth Proportional to 116,061.20, 159,121.39 and 113,961.68

Step by Step Solution

1. Step 1: Write the proportion equation
   116,061.20 : 159,121.39 = 113,961.68 : x
2. Step 2: Convert to fraction form
   116,061.20/159,121.39 = 113,961.68/x
3. Step 3: Cross multiply
   116,061.20x = 159,121.39 × 113,961.68
4. Step 4: Simplify right side
   116,061.20x = 18,133,740,358.53
5. Step 5: Solve for x
   x = 18,133,740,358.53/116,061.20
6. Step 6: Final answer
   x = 156,242.92