Finding the Fourth Proportional to 142,025.58, 195,999.41 and 78,367.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,025.58 : 195,999.41 = 78,367.48 : x
2. Step 2: Convert to fraction form
   142,025.58/195,999.41 = 78,367.48/x
3. Step 3: Cross multiply
   142,025.58x = 195,999.41 × 78,367.48
4. Step 4: Simplify right side
   142,025.58x = 15,359,978,471.35
5. Step 5: Solve for x
   x = 15,359,978,471.35/142,025.58
6. Step 6: Final answer
   x = 108,149.38