Finding the Fourth Proportional to 12,650.58, 18,959.46 and 8,484.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,650.58 : 18,959.46 = 8,484.34 : x
2. Step 2: Convert to fraction form
   12,650.58/18,959.46 = 8,484.34/x
3. Step 3: Cross multiply
   12,650.58x = 18,959.46 × 8,484.34
4. Step 4: Simplify right side
   12,650.58x = 160,858,504.86
5. Step 5: Solve for x
   x = 160,858,504.86/12,650.58
6. Step 6: Final answer
   x = 12,715.50