Finding the Fourth Proportional to 80,667.97, 111,303.99 and 48,387.85

Step by Step Solution

1. Step 1: Write the proportion equation
   80,667.97 : 111,303.99 = 48,387.85 : x
2. Step 2: Convert to fraction form
   80,667.97/111,303.99 = 48,387.85/x
3. Step 3: Cross multiply
   80,667.97x = 111,303.99 × 48,387.85
4. Step 4: Simplify right side
   80,667.97x = 5,385,760,494.26
5. Step 5: Solve for x
   x = 5,385,760,494.26/80,667.97
6. Step 6: Final answer
   x = 66,764.55