Finding the Fourth Proportional to 8,630.50, 12,945.01 and 2,390.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,630.50 : 12,945.01 = 2,390.59 : x
2. Step 2: Convert to fraction form
   8,630.50/12,945.01 = 2,390.59/x
3. Step 3: Cross multiply
   8,630.50x = 12,945.01 × 2,390.59
4. Step 4: Simplify right side
   8,630.50x = 30,946,211.46
5. Step 5: Solve for x
   x = 30,946,211.46/8,630.50
6. Step 6: Final answer
   x = 3,585.68