Finding the Fourth Proportional to 72,411.36, 99,823.02 and 50,835.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,411.36 : 99,823.02 = 50,835.42 : x
2. Step 2: Convert to fraction form
   72,411.36/99,823.02 = 50,835.42/x
3. Step 3: Cross multiply
   72,411.36x = 99,823.02 × 50,835.42
4. Step 4: Simplify right side
   72,411.36x = 5,074,545,147.37
5. Step 5: Solve for x
   x = 5,074,545,147.37/72,411.36
6. Step 6: Final answer
   x = 70,079.41