Finding the Fourth Proportional to 72,608.42, 108,895.34 and 20,022.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,608.42 : 108,895.34 = 20,022.14 : x
2. Step 2: Convert to fraction form
   72,608.42/108,895.34 = 20,022.14/x
3. Step 3: Cross multiply
   72,608.42x = 108,895.34 × 20,022.14
4. Step 4: Simplify right side
   72,608.42x = 2,180,317,742.83
5. Step 5: Solve for x
   x = 2,180,317,742.83/72,608.42
6. Step 6: Final answer
   x = 30,028.44