Finding the Fourth Proportional to 72,287.78, 108,462.68 and 27,945.67

Step by Step Solution

1. Step 1: Write the proportion equation
   72,287.78 : 108,462.68 = 27,945.67 : x
2. Step 2: Convert to fraction form
   72,287.78/108,462.68 = 27,945.67/x
3. Step 3: Cross multiply
   72,287.78x = 108,462.68 × 27,945.67
4. Step 4: Simplify right side
   72,287.78x = 3,031,061,851.71
5. Step 5: Solve for x
   x = 3,031,061,851.71/72,287.78
6. Step 6: Final answer
   x = 41,930.49