Finding the Fourth Proportional to 73,500.78, 110,251.20 and 18,096.78

Step by Step Solution

1. Step 1: Write the proportion equation
   73,500.78 : 110,251.20 = 18,096.78 : x
2. Step 2: Convert to fraction form
   73,500.78/110,251.20 = 18,096.78/x
3. Step 3: Cross multiply
   73,500.78x = 110,251.20 × 18,096.78
4. Step 4: Simplify right side
   73,500.78x = 1,995,191,711.14
5. Step 5: Solve for x
   x = 1,995,191,711.14/73,500.78
6. Step 6: Final answer
   x = 27,145.18