Finding the Fourth Proportional to 196,573.50, 271,271.61 and 107,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,573.50 : 271,271.61 = 107,149.50 : x
2. Step 2: Convert to fraction form
   196,573.50/271,271.61 = 107,149.50/x
3. Step 3: Cross multiply
   196,573.50x = 271,271.61 × 107,149.50
4. Step 4: Simplify right side
   196,573.50x = 29,066,617,375.70
5. Step 5: Solve for x
   x = 29,066,617,375.70/196,573.50
6. Step 6: Final answer
   x = 147,866.41