Finding the Fourth Proportional to 84,290.05, 116,322.55 and 50,318.25

Step by Step Solution

1. Step 1: Write the proportion equation
   84,290.05 : 116,322.55 = 50,318.25 : x
2. Step 2: Convert to fraction form
   84,290.05/116,322.55 = 50,318.25/x
3. Step 3: Cross multiply
   84,290.05x = 116,322.55 × 50,318.25
4. Step 4: Simplify right side
   84,290.05x = 5,853,147,151.54
5. Step 5: Solve for x
   x = 5,853,147,151.54/84,290.05
6. Step 6: Final answer
   x = 69,440.55