Finding the Fourth Proportional to 12,047.94, 18,082.72 and 10,085.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.94 : 18,082.72 = 10,085.85 : x
2. Step 2: Convert to fraction form
   12,047.94/18,082.72 = 10,085.85/x
3. Step 3: Cross multiply
   12,047.94x = 18,082.72 × 10,085.85
4. Step 4: Simplify right side
   12,047.94x = 182,379,596.29
5. Step 5: Solve for x
   x = 182,379,596.29/12,047.94
6. Step 6: Final answer
   x = 15,137.82