Finding the Fourth Proportional to 72,164.24, 99,584.94 and 40,336.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,164.24 : 99,584.94 = 40,336.10 : x
2. Step 2: Convert to fraction form
   72,164.24/99,584.94 = 40,336.10/x
3. Step 3: Cross multiply
   72,164.24x = 99,584.94 × 40,336.10
4. Step 4: Simplify right side
   72,164.24x = 4,016,868,317.46
5. Step 5: Solve for x
   x = 4,016,868,317.46/72,164.24
6. Step 6: Final answer
   x = 55,662.86