Finding the Fourth Proportional to 142,834.42, 214,278.72 and 57,451.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,834.42 : 214,278.72 = 57,451.82 : x
2. Step 2: Convert to fraction form
   142,834.42/214,278.72 = 57,451.82/x
3. Step 3: Cross multiply
   142,834.42x = 214,278.72 × 57,451.82
4. Step 4: Simplify right side
   142,834.42x = 12,310,701,164.43
5. Step 5: Solve for x
   x = 12,310,701,164.43/142,834.42
6. Step 6: Final answer
   x = 86,188.62