Finding the Fourth Proportional to 142,014.27, 195,980.33 and 78,353.94

Step by Step Solution

1. Step 1: Write the proportion equation
   142,014.27 : 195,980.33 = 78,353.94 : x
2. Step 2: Convert to fraction form
   142,014.27/195,980.33 = 78,353.94/x
3. Step 3: Cross multiply
   142,014.27x = 195,980.33 × 78,353.94
4. Step 4: Simplify right side
   142,014.27x = 15,355,831,018.00
5. Step 5: Solve for x
   x = 15,355,831,018.00/142,014.27
6. Step 6: Final answer
   x = 108,128.79