Finding the Fourth Proportional to 142,337.36, 213,528.18 and 47,538.20

Step by Step Solution

1. Step 1: Write the proportion equation
   142,337.36 : 213,528.18 = 47,538.20 : x
2. Step 2: Convert to fraction form
   142,337.36/213,528.18 = 47,538.20/x
3. Step 3: Cross multiply
   142,337.36x = 213,528.18 × 47,538.20
4. Step 4: Simplify right side
   142,337.36x = 10,150,745,326.48
5. Step 5: Solve for x
   x = 10,150,745,326.48/142,337.36
6. Step 6: Final answer
   x = 71,314.69