Finding the Fourth Proportional to 196,842.58, 295,120.83 and 78,478.42

Step by Step Solution

1. Step 1: Write the proportion equation
   196,842.58 : 295,120.83 = 78,478.42 : x
2. Step 2: Convert to fraction form
   196,842.58/295,120.83 = 78,478.42/x
3. Step 3: Cross multiply
   196,842.58x = 295,120.83 × 78,478.42
4. Step 4: Simplify right side
   196,842.58x = 23,160,616,447.49
5. Step 5: Solve for x
   x = 23,160,616,447.49/196,842.58
6. Step 6: Final answer
   x = 117,660.60