Finding the Fourth Proportional to 12,541.37, 18,821.16 and 10,105.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,541.37 : 18,821.16 = 10,105.61 : x
2. Step 2: Convert to fraction form
   12,541.37/18,821.16 = 10,105.61/x
3. Step 3: Cross multiply
   12,541.37x = 18,821.16 × 10,105.61
4. Step 4: Simplify right side
   12,541.37x = 190,199,208.60
5. Step 5: Solve for x
   x = 190,199,208.60/12,541.37
6. Step 6: Final answer
   x = 15,165.75