Finding the Fourth Proportional to 103,659.72, 155,456.52 and 40,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,659.72 : 155,456.52 = 40,464.50 : x
2. Step 2: Convert to fraction form
   103,659.72/155,456.52 = 40,464.50/x
3. Step 3: Cross multiply
   103,659.72x = 155,456.52 × 40,464.50
4. Step 4: Simplify right side
   103,659.72x = 6,290,469,424.52
5. Step 5: Solve for x
   x = 6,290,469,424.52/103,659.72
6. Step 6: Final answer
   x = 60,683.84