Finding the Fourth Proportional to 31,514.57, 47,272.76 and 8,141

Step by Step Solution

1. Step 1: Write the proportion equation
   31,514.57 : 47,272.76 = 8,141 : x
2. Step 2: Convert to fraction form
   31,514.57/47,272.76 = 8,141/x
3. Step 3: Cross multiply
   31,514.57x = 47,272.76 × 8,141
4. Step 4: Simplify right side
   31,514.57x = 384,847,498.46
5. Step 5: Solve for x
   x = 384,847,498.46/31,514.57
6. Step 6: Final answer
   x = 12,211.73