Finding the Fourth Proportional to 19,704, 27,191.52 and 13,427.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,704 : 27,191.52 = 13,427.31 : x
2. Step 2: Convert to fraction form
   19,704/27,191.52 = 13,427.31/x
3. Step 3: Cross multiply
   19,704x = 27,191.52 × 13,427.31
4. Step 4: Simplify right side
   19,704x = 365,108,968.41
5. Step 5: Solve for x
   x = 365,108,968.41/19,704
6. Step 6: Final answer
   x = 18,529.69