Finding the Fourth Proportional to 20,345.01, 30,520.25 and 19,114.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,345.01 : 30,520.25 = 19,114.82 : x
2. Step 2: Convert to fraction form
   20,345.01/30,520.25 = 19,114.82/x
3. Step 3: Cross multiply
   20,345.01x = 30,520.25 × 19,114.82
4. Step 4: Simplify right side
   20,345.01x = 583,388,836.93
5. Step 5: Solve for x
   x = 583,388,836.93/20,345.01
6. Step 6: Final answer
   x = 28,674.79