Finding the Fourth Proportional to 80,616.51, 111,281.78 and 53,749.22

Step by Step Solution

1. Step 1: Write the proportion equation
   80,616.51 : 111,281.78 = 53,749.22 : x
2. Step 2: Convert to fraction form
   80,616.51/111,281.78 = 53,749.22/x
3. Step 3: Cross multiply
   80,616.51x = 111,281.78 × 53,749.22
4. Step 4: Simplify right side
   80,616.51x = 5,981,308,050.06
5. Step 5: Solve for x
   x = 5,981,308,050.06/80,616.51
6. Step 6: Final answer
   x = 74,194.58