Finding the Fourth Proportional to 56,782.85, 85,074.31 and 50,597.91

Step by Step Solution

1. Step 1: Write the proportion equation
   56,782.85 : 85,074.31 = 50,597.91 : x
2. Step 2: Convert to fraction form
   56,782.85/85,074.31 = 50,597.91/x
3. Step 3: Cross multiply
   56,782.85x = 85,074.31 × 50,597.91
4. Step 4: Simplify right side
   56,782.85x = 4,304,582,280.69
5. Step 5: Solve for x
   x = 4,304,582,280.69/56,782.85
6. Step 6: Final answer
   x = 75,807.79