Finding the Fourth Proportional to 142,608.41, 196,801.94 and 78,076.58

Step by Step Solution

1. Step 1: Write the proportion equation
   142,608.41 : 196,801.94 = 78,076.58 : x
2. Step 2: Convert to fraction form
   142,608.41/196,801.94 = 78,076.58/x
3. Step 3: Cross multiply
   142,608.41x = 196,801.94 × 78,076.58
4. Step 4: Simplify right side
   142,608.41x = 15,365,622,412.57
5. Step 5: Solve for x
   x = 15,365,622,412.57/142,608.41
6. Step 6: Final answer
   x = 107,746.96