Finding the Fourth Proportional to 84,559.72, 116,683.92 and 50,561.40

Step by Step Solution

1. Step 1: Write the proportion equation
   84,559.72 : 116,683.92 = 50,561.40 : x
2. Step 2: Convert to fraction form
   84,559.72/116,683.92 = 50,561.40/x
3. Step 3: Cross multiply
   84,559.72x = 116,683.92 × 50,561.40
4. Step 4: Simplify right side
   84,559.72x = 5,899,701,769.27
5. Step 5: Solve for x
   x = 5,899,701,769.27/84,559.72
6. Step 6: Final answer
   x = 69,769.65