Finding the Fourth Proportional to 142,729.94, 214,099.76 and 67,811.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,729.94 : 214,099.76 = 67,811.42 : x
2. Step 2: Convert to fraction form
   142,729.94/214,099.76 = 67,811.42/x
3. Step 3: Cross multiply
   142,729.94x = 214,099.76 × 67,811.42
4. Step 4: Simplify right side
   142,729.94x = 14,518,407,846.29
5. Step 5: Solve for x
   x = 14,518,407,846.29/142,729.94
6. Step 6: Final answer
   x = 101,719.43