Finding the Fourth Proportional to 31,859.40, 47,787.72 and 9,672.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,859.40 : 47,787.72 = 9,672.27 : x
2. Step 2: Convert to fraction form
   31,859.40/47,787.72 = 9,672.27/x
3. Step 3: Cross multiply
   31,859.40x = 47,787.72 × 9,672.27
4. Step 4: Simplify right side
   31,859.40x = 462,215,730.52
5. Step 5: Solve for x
   x = 462,215,730.52/31,859.40
6. Step 6: Final answer
   x = 14,507.99