Finding the Fourth Proportional to 12,085.41, 16,687.31 and 7,838.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,085.41 : 16,687.31 = 7,838.49 : x
2. Step 2: Convert to fraction form
   12,085.41/16,687.31 = 7,838.49/x
3. Step 3: Cross multiply
   12,085.41x = 16,687.31 × 7,838.49
4. Step 4: Simplify right side
   12,085.41x = 130,803,273.37
5. Step 5: Solve for x
   x = 130,803,273.37/12,085.41
6. Step 6: Final answer
   x = 10,823.24