Finding the Fourth Proportional to 12,056.88, 18,081.12 and 5,731

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.88 : 18,081.12 = 5,731 : x
2. Step 2: Convert to fraction form
   12,056.88/18,081.12 = 5,731/x
3. Step 3: Cross multiply
   12,056.88x = 18,081.12 × 5,731
4. Step 4: Simplify right side
   12,056.88x = 103,622,898.72
5. Step 5: Solve for x
   x = 103,622,898.72/12,056.88
6. Step 6: Final answer
   x = 8,594.50