Finding the Fourth Proportional to 12,520.56, 18,767.34 and 8,141.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520.56 : 18,767.34 = 8,141.16 : x
2. Step 2: Convert to fraction form
   12,520.56/18,767.34 = 8,141.16/x
3. Step 3: Cross multiply
   12,520.56x = 18,767.34 × 8,141.16
4. Step 4: Simplify right side
   12,520.56x = 152,787,917.71
5. Step 5: Solve for x
   x = 152,787,917.71/12,520.56
6. Step 6: Final answer
   x = 12,202.96