Finding the Fourth Proportional to 72,458.86, 99,888.24 and 50,882.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,458.86 : 99,888.24 = 50,882.89 : x
2. Step 2: Convert to fraction form
   72,458.86/99,888.24 = 50,882.89/x
3. Step 3: Cross multiply
   72,458.86x = 99,888.24 × 50,882.89
4. Step 4: Simplify right side
   72,458.86x = 5,082,602,328.21
5. Step 5: Solve for x
   x = 5,082,602,328.21/72,458.86
6. Step 6: Final answer
   x = 70,144.66