Finding the Fourth Proportional to 19,057.01, 28,553.92 and 13,482.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,057.01 : 28,553.92 = 13,482.72 : x
2. Step 2: Convert to fraction form
   19,057.01/28,553.92 = 13,482.72/x
3. Step 3: Cross multiply
   19,057.01x = 28,553.92 × 13,482.72
4. Step 4: Simplify right side
   19,057.01x = 384,984,474.56
5. Step 5: Solve for x
   x = 384,984,474.56/19,057.01
6. Step 6: Final answer
   x = 20,201.73