Finding the Fourth Proportional to 12,630.34, 18,947.98 and 3,866.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,630.34 : 18,947.98 = 3,866.56 : x
2. Step 2: Convert to fraction form
   12,630.34/18,947.98 = 3,866.56/x
3. Step 3: Cross multiply
   12,630.34x = 18,947.98 × 3,866.56
4. Step 4: Simplify right side
   12,630.34x = 73,263,501.55
5. Step 5: Solve for x
   x = 73,263,501.55/12,630.34
6. Step 6: Final answer
   x = 5,800.60