Finding the Fourth Proportional to 48,245.98, 72,371.00 and 13,185.54

Step by Step Solution

1. Step 1: Write the proportion equation
   48,245.98 : 72,371.00 = 13,185.54 : x
2. Step 2: Convert to fraction form
   48,245.98/72,371.00 = 13,185.54/x
3. Step 3: Cross multiply
   48,245.98x = 72,371.00 × 13,185.54
4. Step 4: Simplify right side
   48,245.98x = 954,250,287.56
5. Step 5: Solve for x
   x = 954,250,287.56/48,245.98
6. Step 6: Final answer
   x = 19,778.86