Finding the Fourth Proportional to 12,040.16, 18,087.95 and 8,538.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.16 : 18,087.95 = 8,538.83 : x
2. Step 2: Convert to fraction form
   12,040.16/18,087.95 = 8,538.83/x
3. Step 3: Cross multiply
   12,040.16x = 18,087.95 × 8,538.83
4. Step 4: Simplify right side
   12,040.16x = 154,449,861.01
5. Step 5: Solve for x
   x = 154,449,861.01/12,040.16
6. Step 6: Final answer
   x = 12,827.89