Finding the Fourth Proportional to 22,020.28, 30,385.98 and 13,066.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,020.28 : 30,385.98 = 13,066.24 : x
2. Step 2: Convert to fraction form
   22,020.28/30,385.98 = 13,066.24/x
3. Step 3: Cross multiply
   22,020.28x = 30,385.98 × 13,066.24
4. Step 4: Simplify right side
   22,020.28x = 397,030,507.32
5. Step 5: Solve for x
   x = 397,030,507.32/22,020.28
6. Step 6: Final answer
   x = 18,030.22