Finding the Fourth Proportional to 39,494.54, 59,244.89 and 13,199.37

Step by Step Solution

1. Step 1: Write the proportion equation
   39,494.54 : 59,244.89 = 13,199.37 : x
2. Step 2: Convert to fraction form
   39,494.54/59,244.89 = 13,199.37/x
3. Step 3: Cross multiply
   39,494.54x = 59,244.89 × 13,199.37
4. Step 4: Simplify right side
   39,494.54x = 781,995,157.72
5. Step 5: Solve for x
   x = 781,995,157.72/39,494.54
6. Step 6: Final answer
   x = 19,800.09