Finding the Fourth Proportional to 142,452.62, 213,690.17 and 47,683.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,452.62 : 213,690.17 = 47,683.37 : x
2. Step 2: Convert to fraction form
   142,452.62/213,690.17 = 47,683.37/x
3. Step 3: Cross multiply
   142,452.62x = 213,690.17 × 47,683.37
4. Step 4: Simplify right side
   142,452.62x = 10,189,466,492.23
5. Step 5: Solve for x
   x = 10,189,466,492.23/142,452.62
6. Step 6: Final answer
   x = 71,528.81