Finding the Fourth Proportional to 12,003.70, 17,974.05 and 8,474.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.70 : 17,974.05 = 8,474.65 : x
2. Step 2: Convert to fraction form
   12,003.70/17,974.05 = 8,474.65/x
3. Step 3: Cross multiply
   12,003.70x = 17,974.05 × 8,474.65
4. Step 4: Simplify right side
   12,003.70x = 152,323,782.83
5. Step 5: Solve for x
   x = 152,323,782.83/12,003.70
6. Step 6: Final answer
   x = 12,689.74