Finding the Fourth Proportional to 142,931.25, 214,286.15 and 82,867.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,931.25 : 214,286.15 = 82,867.34 : x
2. Step 2: Convert to fraction form
   142,931.25/214,286.15 = 82,867.34/x
3. Step 3: Cross multiply
   142,931.25x = 214,286.15 × 82,867.34
4. Step 4: Simplify right side
   142,931.25x = 17,757,323,992.22
5. Step 5: Solve for x
   x = 17,757,323,992.22/142,931.25
6. Step 6: Final answer
   x = 124,236.82