Finding the Fourth Proportional to 12,136.10, 16,747.61 and 6,830.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,136.10 : 16,747.61 = 6,830.79 : x
2. Step 2: Convert to fraction form
   12,136.10/16,747.61 = 6,830.79/x
3. Step 3: Cross multiply
   12,136.10x = 16,747.61 × 6,830.79
4. Step 4: Simplify right side
   12,136.10x = 114,399,372.76
5. Step 5: Solve for x
   x = 114,399,372.76/12,136.10
6. Step 6: Final answer
   x = 9,426.37