Finding the Fourth Proportional to 142,756.40, 197,100.06 and 127,600.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,756.40 : 197,100.06 = 127,600.50 : x
2. Step 2: Convert to fraction form
   142,756.40/197,100.06 = 127,600.50/x
3. Step 3: Cross multiply
   142,756.40x = 197,100.06 × 127,600.50
4. Step 4: Simplify right side
   142,756.40x = 25,150,066,206.03
5. Step 5: Solve for x
   x = 25,150,066,206.03/142,756.40
6. Step 6: Final answer
   x = 176,174.70