Finding the Fourth Proportional to 47,229.37, 70,851.72 and 13,952.78

Step by Step Solution

1. Step 1: Write the proportion equation
   47,229.37 : 70,851.72 = 13,952.78 : x
2. Step 2: Convert to fraction form
   47,229.37/70,851.72 = 13,952.78/x
3. Step 3: Cross multiply
   47,229.37x = 70,851.72 × 13,952.78
4. Step 4: Simplify right side
   47,229.37x = 988,578,461.78
5. Step 5: Solve for x
   x = 988,578,461.78/47,229.37
6. Step 6: Final answer
   x = 20,931.43