Finding the Fourth Proportional to 110,940.28, 153,171.41 and 65,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   110,940.28 : 153,171.41 = 65,632.78 : x
2. Step 2: Convert to fraction form
   110,940.28/153,171.41 = 65,632.78/x
3. Step 3: Cross multiply
   110,940.28x = 153,171.41 × 65,632.78
4. Step 4: Simplify right side
   110,940.28x = 10,053,064,360.80
5. Step 5: Solve for x
   x = 10,053,064,360.80/110,940.28
6. Step 6: Final answer
   x = 90,616.91