Finding the Fourth Proportional to 12,611.46, 18,916.51 and 3,845.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.46 : 18,916.51 = 3,845.69 : x
2. Step 2: Convert to fraction form
   12,611.46/18,916.51 = 3,845.69/x
3. Step 3: Cross multiply
   12,611.46x = 18,916.51 × 3,845.69
4. Step 4: Simplify right side
   12,611.46x = 72,747,033.34
5. Step 5: Solve for x
   x = 72,747,033.34/12,611.46
6. Step 6: Final answer
   x = 5,768.33