Finding the Fourth Proportional to 142,081.76, 196,074.68 and 83,940.41

Step by Step Solution

1. Step 1: Write the proportion equation
   142,081.76 : 196,074.68 = 83,940.41 : x
2. Step 2: Convert to fraction form
   142,081.76/196,074.68 = 83,940.41/x
3. Step 3: Cross multiply
   142,081.76x = 196,074.68 × 83,940.41
4. Step 4: Simplify right side
   142,081.76x = 16,458,587,629.74
5. Step 5: Solve for x
   x = 16,458,587,629.74/142,081.76
6. Step 6: Final answer
   x = 115,838.85