Finding the Fourth Proportional to 19,082.00, 28,574.03 and 12,488.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,082.00 : 28,574.03 = 12,488.96 : x
2. Step 2: Convert to fraction form
   19,082.00/28,574.03 = 12,488.96/x
3. Step 3: Cross multiply
   19,082.00x = 28,574.03 × 12,488.96
4. Step 4: Simplify right side
   19,082.00x = 356,859,806.06
5. Step 5: Solve for x
   x = 356,859,806.06/19,082.00
6. Step 6: Final answer
   x = 18,701.39