Finding the Fourth Proportional to 142,096.84, 196,095.26 and 78,434.69

Step by Step Solution

1. Step 1: Write the proportion equation
   142,096.84 : 196,095.26 = 78,434.69 : x
2. Step 2: Convert to fraction form
   142,096.84/196,095.26 = 78,434.69/x
3. Step 3: Cross multiply
   142,096.84x = 196,095.26 × 78,434.69
4. Step 4: Simplify right side
   142,096.84x = 15,380,670,144.18
5. Step 5: Solve for x
   x = 15,380,670,144.18/142,096.84
6. Step 6: Final answer
   x = 108,240.76