Finding the Fourth Proportional to 41,860.39, 62,799.83 and 13,779.31

Step by Step Solution

1. Step 1: Write the proportion equation
   41,860.39 : 62,799.83 = 13,779.31 : x
2. Step 2: Convert to fraction form
   41,860.39/62,799.83 = 13,779.31/x
3. Step 3: Cross multiply
   41,860.39x = 62,799.83 × 13,779.31
4. Step 4: Simplify right side
   41,860.39x = 865,338,325.52
5. Step 5: Solve for x
   x = 865,338,325.52/41,860.39
6. Step 6: Final answer
   x = 20,672.01