Finding the Fourth Proportional to 40,422.69, 60,640.83 and 18,235.53

Step by Step Solution

1. Step 1: Write the proportion equation
   40,422.69 : 60,640.83 = 18,235.53 : x
2. Step 2: Convert to fraction form
   40,422.69/60,640.83 = 18,235.53/x
3. Step 3: Cross multiply
   40,422.69x = 60,640.83 × 18,235.53
4. Step 4: Simplify right side
   40,422.69x = 1,105,817,674.69
5. Step 5: Solve for x
   x = 1,105,817,674.69/40,422.69
6. Step 6: Final answer
   x = 27,356.36