Finding the Fourth Proportional to 81,188.33, 111,967.31 and 50,976.47

Step by Step Solution

1. Step 1: Write the proportion equation
   81,188.33 : 111,967.31 = 50,976.47 : x
2. Step 2: Convert to fraction form
   81,188.33/111,967.31 = 50,976.47/x
3. Step 3: Cross multiply
   81,188.33x = 111,967.31 × 50,976.47
4. Step 4: Simplify right side
   81,188.33x = 5,707,698,626.56
5. Step 5: Solve for x
   x = 5,707,698,626.56/81,188.33
6. Step 6: Final answer
   x = 70,301.96