Finding the Fourth Proportional to 47,410.72, 71,119.76 and 14,128.24

Step by Step Solution

1. Step 1: Write the proportion equation
   47,410.72 : 71,119.76 = 14,128.24 : x
2. Step 2: Convert to fraction form
   47,410.72/71,119.76 = 14,128.24/x
3. Step 3: Cross multiply
   47,410.72x = 71,119.76 × 14,128.24
4. Step 4: Simplify right side
   47,410.72x = 1,004,797,038.02
5. Step 5: Solve for x
   x = 1,004,797,038.02/47,410.72
6. Step 6: Final answer
   x = 21,193.46