Finding the Fourth Proportional to 43,773.27, 65,636.41 and 13,781.87

Step by Step Solution

1. Step 1: Write the proportion equation
   43,773.27 : 65,636.41 = 13,781.87 : x
2. Step 2: Convert to fraction form
   43,773.27/65,636.41 = 13,781.87/x
3. Step 3: Cross multiply
   43,773.27x = 65,636.41 × 13,781.87
4. Step 4: Simplify right side
   43,773.27x = 904,592,469.89
5. Step 5: Solve for x
   x = 904,592,469.89/43,773.27
6. Step 6: Final answer
   x = 20,665.41