Finding the Fourth Proportional to 72,160.43, 99,476.63 and 50,582.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,160.43 : 99,476.63 = 50,582.94 : x
2. Step 2: Convert to fraction form
   72,160.43/99,476.63 = 50,582.94/x
3. Step 3: Cross multiply
   72,160.43x = 99,476.63 × 50,582.94
4. Step 4: Simplify right side
   72,160.43x = 5,031,820,153.78
5. Step 5: Solve for x
   x = 5,031,820,153.78/72,160.43
6. Step 6: Final answer
   x = 69,731.02