Finding the Fourth Proportional to 55,752.90, 83,493 and 50,355.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,752.90 : 83,493 = 50,355.42 : x
2. Step 2: Convert to fraction form
   55,752.90/83,493 = 50,355.42/x
3. Step 3: Cross multiply
   55,752.90x = 83,493 × 50,355.42
4. Step 4: Simplify right side
   55,752.90x = 4,204,325,082.06
5. Step 5: Solve for x
   x = 4,204,325,082.06/55,752.90
6. Step 6: Final answer
   x = 75,409.98