Finding the Fourth Proportional to 80,890.46, 111,627.32 and 45,079.68

Step by Step Solution

1. Step 1: Write the proportion equation
   80,890.46 : 111,627.32 = 45,079.68 : x
2. Step 2: Convert to fraction form
   80,890.46/111,627.32 = 45,079.68/x
3. Step 3: Cross multiply
   80,890.46x = 111,627.32 × 45,079.68
4. Step 4: Simplify right side
   80,890.46x = 5,032,123,639.46
5. Step 5: Solve for x
   x = 5,032,123,639.46/80,890.46
6. Step 6: Final answer
   x = 62,209.12