Finding the Fourth Proportional to 142,978.26, 214,327.92 and 68,078.28

Step by Step Solution

1. Step 1: Write the proportion equation
   142,978.26 : 214,327.92 = 68,078.28 : x
2. Step 2: Convert to fraction form
   142,978.26/214,327.92 = 68,078.28/x
3. Step 3: Cross multiply
   142,978.26x = 214,327.92 × 68,078.28
4. Step 4: Simplify right side
   142,978.26x = 14,591,076,149.58
5. Step 5: Solve for x
   x = 14,591,076,149.58/142,978.26
6. Step 6: Final answer
   x = 102,051.01