Finding the Fourth Proportional to 142,124.71, 213,115.76 and 47,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,124.71 : 213,115.76 = 47,321.50 : x
2. Step 2: Convert to fraction form
   142,124.71/213,115.76 = 47,321.50/x
3. Step 3: Cross multiply
   142,124.71x = 213,115.76 × 47,321.50
4. Step 4: Simplify right side
   142,124.71x = 10,084,957,436.84
5. Step 5: Solve for x
   x = 10,084,957,436.84/142,124.71
6. Step 6: Final answer
   x = 70,958.51