Finding the Fourth Proportional to 12,613.50, 18,913.05 and 3,845.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.50 : 18,913.05 = 3,845.34 : x
2. Step 2: Convert to fraction form
   12,613.50/18,913.05 = 3,845.34/x
3. Step 3: Cross multiply
   12,613.50x = 18,913.05 × 3,845.34
4. Step 4: Simplify right side
   12,613.50x = 72,727,107.69
5. Step 5: Solve for x
   x = 72,727,107.69/12,613.50
6. Step 6: Final answer
   x = 5,765.82