Finding the Fourth Proportional to 142,108.50, 196,105.94 and 78,444.94

Step by Step Solution

1. Step 1: Write the proportion equation
   142,108.50 : 196,105.94 = 78,444.94 : x
2. Step 2: Convert to fraction form
   142,108.50/196,105.94 = 78,444.94/x
3. Step 3: Cross multiply
   142,108.50x = 196,105.94 × 78,444.94
4. Step 4: Simplify right side
   142,108.50x = 15,383,518,696.94
5. Step 5: Solve for x
   x = 15,383,518,696.94/142,108.50
6. Step 6: Final answer
   x = 108,251.93