Finding the Fourth Proportional to 12,611.50, 17,404.27 and 6,946.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.50 : 17,404.27 = 6,946.56 : x
2. Step 2: Convert to fraction form
   12,611.50/17,404.27 = 6,946.56/x
3. Step 3: Cross multiply
   12,611.50x = 17,404.27 × 6,946.56
4. Step 4: Simplify right side
   12,611.50x = 120,899,788.44
5. Step 5: Solve for x
   x = 120,899,788.44/12,611.50
6. Step 6: Final answer
   x = 9,586.47