Finding the Fourth Proportional to 39,411.94, 59,105.22 and 13,109.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,411.94 : 59,105.22 = 13,109.62 : x
2. Step 2: Convert to fraction form
   39,411.94/59,105.22 = 13,109.62/x
3. Step 3: Cross multiply
   39,411.94x = 59,105.22 × 13,109.62
4. Step 4: Simplify right side
   39,411.94x = 774,846,974.22
5. Step 5: Solve for x
   x = 774,846,974.22/39,411.94
6. Step 6: Final answer
   x = 19,660.21