Finding the Fourth Proportional to 12,983.02, 17,919.50 and 8,504.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.02 : 17,919.50 = 8,504.19 : x
2. Step 2: Convert to fraction form
   12,983.02/17,919.50 = 8,504.19/x
3. Step 3: Cross multiply
   12,983.02x = 17,919.50 × 8,504.19
4. Step 4: Simplify right side
   12,983.02x = 152,390,790.18
5. Step 5: Solve for x
   x = 152,390,790.18/12,983.02
6. Step 6: Final answer
   x = 11,737.70