Finding the Fourth Proportional to 39,411.37, 59,104.09 and 13,109.05

Step by Step Solution

1. Step 1: Write the proportion equation
   39,411.37 : 59,104.09 = 13,109.05 : x
2. Step 2: Convert to fraction form
   39,411.37/59,104.09 = 13,109.05/x
3. Step 3: Cross multiply
   39,411.37x = 59,104.09 × 13,109.05
4. Step 4: Simplify right side
   39,411.37x = 774,798,471.01
5. Step 5: Solve for x
   x = 774,798,471.01/39,411.37
6. Step 6: Final answer
   x = 19,659.26