Finding the Fourth Proportional to 12,072.50, 16,650.89 and 10,577.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,072.50 : 16,650.89 = 10,577.81 : x
2. Step 2: Convert to fraction form
   12,072.50/16,650.89 = 10,577.81/x
3. Step 3: Cross multiply
   12,072.50x = 16,650.89 × 10,577.81
4. Step 4: Simplify right side
   12,072.50x = 176,129,979.16
5. Step 5: Solve for x
   x = 176,129,979.16/12,072.50
6. Step 6: Final answer
   x = 14,589.36