Finding the Fourth Proportional to 108,048.42, 149,065.20 and 67,691.97

Step by Step Solution

1. Step 1: Write the proportion equation
   108,048.42 : 149,065.20 = 67,691.97 : x
2. Step 2: Convert to fraction form
   108,048.42/149,065.20 = 67,691.97/x
3. Step 3: Cross multiply
   108,048.42x = 149,065.20 × 67,691.97
4. Step 4: Simplify right side
   108,048.42x = 10,090,517,046.44
5. Step 5: Solve for x
   x = 10,090,517,046.44/108,048.42
6. Step 6: Final answer
   x = 93,388.84