Finding the Fourth Proportional to 80,995.12, 111,785.56 and 49,157.88

Step by Step Solution

1. Step 1: Write the proportion equation
   80,995.12 : 111,785.56 = 49,157.88 : x
2. Step 2: Convert to fraction form
   80,995.12/111,785.56 = 49,157.88/x
3. Step 3: Cross multiply
   80,995.12x = 111,785.56 × 49,157.88
4. Step 4: Simplify right side
   80,995.12x = 5,495,141,144.21
5. Step 5: Solve for x
   x = 5,495,141,144.21/80,995.12
6. Step 6: Final answer
   x = 67,845.34