Finding the Fourth Proportional to 19,980.82, 27,584.58 and 12,025

Step by Step Solution

1. Step 1: Write the proportion equation
   19,980.82 : 27,584.58 = 12,025 : x
2. Step 2: Convert to fraction form
   19,980.82/27,584.58 = 12,025/x
3. Step 3: Cross multiply
   19,980.82x = 27,584.58 × 12,025
4. Step 4: Simplify right side
   19,980.82x = 331,704,574.50
5. Step 5: Solve for x
   x = 331,704,574.50/19,980.82
6. Step 6: Final answer
   x = 16,601.15