Finding the Fourth Proportional to 31,968.72, 47,947.30 and 8,589.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,968.72 : 47,947.30 = 8,589.69 : x
2. Step 2: Convert to fraction form
   31,968.72/47,947.30 = 8,589.69/x
3. Step 3: Cross multiply
   31,968.72x = 47,947.30 × 8,589.69
4. Step 4: Simplify right side
   31,968.72x = 411,852,443.34
5. Step 5: Solve for x
   x = 411,852,443.34/31,968.72
6. Step 6: Final answer
   x = 12,882.98