Finding the Fourth Proportional to 142,294.56, 196,366.56 and 78,632.36

Step by Step Solution

1. Step 1: Write the proportion equation
   142,294.56 : 196,366.56 = 78,632.36 : x
2. Step 2: Convert to fraction form
   142,294.56/196,366.56 = 78,632.36/x
3. Step 3: Cross multiply
   142,294.56x = 196,366.56 × 78,632.36
4. Step 4: Simplify right side
   142,294.56x = 15,440,766,037.88
5. Step 5: Solve for x
   x = 15,440,766,037.88/142,294.56
6. Step 6: Final answer
   x = 108,512.69