Finding the Fourth Proportional to 12,051.89, 18,105.59 and 8,550.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,051.89 : 18,105.59 = 8,550.59 : x
2. Step 2: Convert to fraction form
   12,051.89/18,105.59 = 8,550.59/x
3. Step 3: Cross multiply
   12,051.89x = 18,105.59 × 8,550.59
4. Step 4: Simplify right side
   12,051.89x = 154,813,434.05
5. Step 5: Solve for x
   x = 154,813,434.05/12,051.89
6. Step 6: Final answer
   x = 12,845.57