Finding the Fourth Proportional to 19,973.79, 27,559.98 and 12,016.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,973.79 : 27,559.98 = 12,016.53 : x
2. Step 2: Convert to fraction form
   19,973.79/27,559.98 = 12,016.53/x
3. Step 3: Cross multiply
   19,973.79x = 27,559.98 × 12,016.53
4. Step 4: Simplify right side
   19,973.79x = 331,175,248.96
5. Step 5: Solve for x
   x = 331,175,248.96/19,973.79
6. Step 6: Final answer
   x = 16,580.49