Finding the Fourth Proportional to 12,851.89, 19,224.53 and 12,064.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,851.89 : 19,224.53 = 12,064.57 : x
2. Step 2: Convert to fraction form
   12,851.89/19,224.53 = 12,064.57/x
3. Step 3: Cross multiply
   12,851.89x = 19,224.53 × 12,064.57
4. Step 4: Simplify right side
   12,851.89x = 231,935,661.86
5. Step 5: Solve for x
   x = 231,935,661.86/12,851.89
6. Step 6: Final answer
   x = 18,046.81