Finding the Fourth Proportional to 12,081.75, 18,123.98 and 10,841.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.75 : 18,123.98 = 10,841.55 : x
2. Step 2: Convert to fraction form
   12,081.75/18,123.98 = 10,841.55/x
3. Step 3: Cross multiply
   12,081.75x = 18,123.98 × 10,841.55
4. Step 4: Simplify right side
   12,081.75x = 196,491,981.16
5. Step 5: Solve for x
   x = 196,491,981.16/12,081.75
6. Step 6: Final answer
   x = 16,263.54