Finding the Fourth Proportional to 142,056.42, 213,119.33 and 47,286.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,056.42 : 213,119.33 = 47,286.42 : x
2. Step 2: Convert to fraction form
   142,056.42/213,119.33 = 47,286.42/x
3. Step 3: Cross multiply
   142,056.42x = 213,119.33 × 47,286.42
4. Step 4: Simplify right side
   142,056.42x = 10,077,650,148.50
5. Step 5: Solve for x
   x = 10,077,650,148.50/142,056.42
6. Step 6: Final answer
   x = 70,941.18