Finding the Fourth Proportional to 72,238.07, 99,582.44 and 50,662.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,238.07 : 99,582.44 = 50,662.40 : x
2. Step 2: Convert to fraction form
   72,238.07/99,582.44 = 50,662.40/x
3. Step 3: Cross multiply
   72,238.07x = 99,582.44 × 50,662.40
4. Step 4: Simplify right side
   72,238.07x = 5,045,085,408.26
5. Step 5: Solve for x
   x = 5,045,085,408.26/72,238.07
6. Step 6: Final answer
   x = 69,839.70