Finding the Fourth Proportional to 31,500.56, 47,251.76 and 8,127

Step by Step Solution

1. Step 1: Write the proportion equation
   31,500.56 : 47,251.76 = 8,127 : x
2. Step 2: Convert to fraction form
   31,500.56/47,251.76 = 8,127/x
3. Step 3: Cross multiply
   31,500.56x = 47,251.76 × 8,127
4. Step 4: Simplify right side
   31,500.56x = 384,015,012.89
5. Step 5: Solve for x
   x = 384,015,012.89/31,500.56
6. Step 6: Final answer
   x = 12,190.74