Finding the Fourth Proportional to 196,128.80, 294,377.52 and 102,701.60

Step by Step Solution

1. Step 1: Write the proportion equation
   196,128.80 : 294,377.52 = 102,701.60 : x
2. Step 2: Convert to fraction form
   196,128.80/294,377.52 = 102,701.60/x
3. Step 3: Cross multiply
   196,128.80x = 294,377.52 × 102,701.60
4. Step 4: Simplify right side
   196,128.80x = 30,233,042,308.03
5. Step 5: Solve for x
   x = 30,233,042,308.03/196,128.80
6. Step 6: Final answer
   x = 154,148.92