Finding the Fourth Proportional to 71,775.83, 99,089.46 and 50,331.38

Step by Step Solution

1. Step 1: Write the proportion equation
   71,775.83 : 99,089.46 = 50,331.38 : x
2. Step 2: Convert to fraction form
   71,775.83/99,089.46 = 50,331.38/x
3. Step 3: Cross multiply
   71,775.83x = 99,089.46 × 50,331.38
4. Step 4: Simplify right side
   71,775.83x = 4,987,308,769.81
5. Step 5: Solve for x
   x = 4,987,308,769.81/71,775.83
6. Step 6: Final answer
   x = 69,484.52