Finding the Fourth Proportional to 12,881.39, 19,321.71 and 4,116.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,881.39 : 19,321.71 = 4,116.83 : x
2. Step 2: Convert to fraction form
   12,881.39/19,321.71 = 4,116.83/x
3. Step 3: Cross multiply
   12,881.39x = 19,321.71 × 4,116.83
4. Step 4: Simplify right side
   12,881.39x = 79,544,195.38
5. Step 5: Solve for x
   x = 79,544,195.38/12,881.39
6. Step 6: Final answer
   x = 6,175.13