Finding the Fourth Proportional to 31,727.10, 47,557.16 and 10,647.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,727.10 : 47,557.16 = 10,647.15 : x
2. Step 2: Convert to fraction form
   31,727.10/47,557.16 = 10,647.15/x
3. Step 3: Cross multiply
   31,727.10x = 47,557.16 × 10,647.15
4. Step 4: Simplify right side
   31,727.10x = 506,348,308.37
5. Step 5: Solve for x
   x = 506,348,308.37/31,727.10
6. Step 6: Final answer
   x = 15,959.49