Finding the Fourth Proportional to 142,339.89, 213,438.15 and 47,536.68

Step by Step Solution

1. Step 1: Write the proportion equation
   142,339.89 : 213,438.15 = 47,536.68 : x
2. Step 2: Convert to fraction form
   142,339.89/213,438.15 = 47,536.68/x
3. Step 3: Cross multiply
   142,339.89x = 213,438.15 × 47,536.68
4. Step 4: Simplify right side
   142,339.89x = 10,146,141,036.34
5. Step 5: Solve for x
   x = 10,146,141,036.34/142,339.89
6. Step 6: Final answer
   x = 71,281.08