Finding the Fourth Proportional to 72,606.42, 108,892.35 and 20,020.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,606.42 : 108,892.35 = 20,020.14 : x
2. Step 2: Convert to fraction form
   72,606.42/108,892.35 = 20,020.14/x
3. Step 3: Cross multiply
   72,606.42x = 108,892.35 × 20,020.14
4. Step 4: Simplify right side
   72,606.42x = 2,180,040,091.93
5. Step 5: Solve for x
   x = 2,180,040,091.93/72,606.42
6. Step 6: Final answer
   x = 30,025.45