Finding the Fourth Proportional to 22,025.15, 30,380.89 and 13,066.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,025.15 : 30,380.89 = 13,066.31 : x
2. Step 2: Convert to fraction form
   22,025.15/30,380.89 = 13,066.31/x
3. Step 3: Cross multiply
   22,025.15x = 30,380.89 × 13,066.31
4. Step 4: Simplify right side
   22,025.15x = 396,966,139.48
5. Step 5: Solve for x
   x = 396,966,139.48/22,025.15
6. Step 6: Final answer
   x = 18,023.31