Finding the Fourth Proportional to 43,648.50, 65,462.37 and 12,057.86

Step by Step Solution

1. Step 1: Write the proportion equation
   43,648.50 : 65,462.37 = 12,057.86 : x
2. Step 2: Convert to fraction form
   43,648.50/65,462.37 = 12,057.86/x
3. Step 3: Cross multiply
   43,648.50x = 65,462.37 × 12,057.86
4. Step 4: Simplify right side
   43,648.50x = 789,336,256.38
5. Step 5: Solve for x
   x = 789,336,256.38/43,648.50
6. Step 6: Final answer
   x = 18,083.93