Finding the Fourth Proportional to 12,781.29, 19,174.82 and 3,897.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,781.29 : 19,174.82 = 3,897.41 : x
2. Step 2: Convert to fraction form
   12,781.29/19,174.82 = 3,897.41/x
3. Step 3: Cross multiply
   12,781.29x = 19,174.82 × 3,897.41
4. Step 4: Simplify right side
   12,781.29x = 74,732,019.86
5. Step 5: Solve for x
   x = 74,732,019.86/12,781.29
6. Step 6: Final answer
   x = 5,846.99