Finding the Fourth Proportional to 72,418.86, 99,833.37 and 50,842.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,418.86 : 99,833.37 = 50,842.92 : x
2. Step 2: Convert to fraction form
   72,418.86/99,833.37 = 50,842.92/x
3. Step 3: Cross multiply
   72,418.86x = 99,833.37 × 50,842.92
4. Step 4: Simplify right side
   72,418.86x = 5,075,820,044.24
5. Step 5: Solve for x
   x = 5,075,820,044.24/72,418.86
6. Step 6: Final answer
   x = 70,089.75