Finding the Fourth Proportional to 12,480.63, 18,715.46 and 4,683.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,480.63 : 18,715.46 = 4,683.98 : x
2. Step 2: Convert to fraction form
   12,480.63/18,715.46 = 4,683.98/x
3. Step 3: Cross multiply
   12,480.63x = 18,715.46 × 4,683.98
4. Step 4: Simplify right side
   12,480.63x = 87,662,723.33
5. Step 5: Solve for x
   x = 87,662,723.33/12,480.63
6. Step 6: Final answer
   x = 7,023.90