Finding the Fourth Proportional to 47,007.36, 70,517.61 and 13,729.86

Step by Step Solution

1. Step 1: Write the proportion equation
   47,007.36 : 70,517.61 = 13,729.86 : x
2. Step 2: Convert to fraction form
   47,007.36/70,517.61 = 13,729.86/x
3. Step 3: Cross multiply
   47,007.36x = 70,517.61 × 13,729.86
4. Step 4: Simplify right side
   47,007.36x = 968,196,912.83
5. Step 5: Solve for x
   x = 968,196,912.83/47,007.36
6. Step 6: Final answer
   x = 20,596.71