Finding the Fourth Proportional to 80,932.50, 111,688.25 and 45,118.55

Step by Step Solution

1. Step 1: Write the proportion equation
   80,932.50 : 111,688.25 = 45,118.55 : x
2. Step 2: Convert to fraction form
   80,932.50/111,688.25 = 45,118.55/x
3. Step 3: Cross multiply
   80,932.50x = 111,688.25 × 45,118.55
4. Step 4: Simplify right side
   80,932.50x = 5,039,211,945.67
5. Step 5: Solve for x
   x = 5,039,211,945.67/80,932.50
6. Step 6: Final answer
   x = 62,264.38