Finding the Fourth Proportional to 80,782.03, 111,406.62 and 50,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   80,782.03 : 111,406.62 = 50,570.10 : x
2. Step 2: Convert to fraction form
   80,782.03/111,406.62 = 50,570.10/x
3. Step 3: Cross multiply
   80,782.03x = 111,406.62 × 50,570.10
4. Step 4: Simplify right side
   80,782.03x = 5,633,843,914.06
5. Step 5: Solve for x
   x = 5,633,843,914.06/80,782.03
6. Step 6: Final answer
   x = 69,741.30