Finding the Fourth Proportional to 13,314.54, 19,974.88 and 3,954.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,314.54 : 19,974.88 = 3,954.35 : x
2. Step 2: Convert to fraction form
   13,314.54/19,974.88 = 3,954.35/x
3. Step 3: Cross multiply
   13,314.54x = 19,974.88 × 3,954.35
4. Step 4: Simplify right side
   13,314.54x = 78,987,666.73
5. Step 5: Solve for x
   x = 78,987,666.73/13,314.54
6. Step 6: Final answer
   x = 5,932.44