Finding the Fourth Proportional to 72,417.36, 99,831.30 and 50,841.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,417.36 : 99,831.30 = 50,841.42 : x
2. Step 2: Convert to fraction form
   72,417.36/99,831.30 = 50,841.42/x
3. Step 3: Cross multiply
   72,417.36x = 99,831.30 × 50,841.42
4. Step 4: Simplify right side
   72,417.36x = 5,075,565,052.45
5. Step 5: Solve for x
   x = 5,075,565,052.45/72,417.36
6. Step 6: Final answer
   x = 70,087.68