Finding the Fourth Proportional to 12,136.12, 16,743.78 and 7,892.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,136.12 : 16,743.78 = 7,892.43 : x
2. Step 2: Convert to fraction form
   12,136.12/16,743.78 = 7,892.43/x
3. Step 3: Cross multiply
   12,136.12x = 16,743.78 × 7,892.43
4. Step 4: Simplify right side
   12,136.12x = 132,149,111.59
5. Step 5: Solve for x
   x = 132,149,111.59/12,136.12
6. Step 6: Final answer
   x = 10,888.91