Finding the Fourth Proportional to 131,698.25, 181,743.57 and 71,268.89

Step by Step Solution

1. Step 1: Write the proportion equation
   131,698.25 : 181,743.57 = 71,268.89 : x
2. Step 2: Convert to fraction form
   131,698.25/181,743.57 = 71,268.89/x
3. Step 3: Cross multiply
   131,698.25x = 181,743.57 × 71,268.89
4. Step 4: Simplify right side
   131,698.25x = 12,952,661,589.82
5. Step 5: Solve for x
   x = 12,952,661,589.82/131,698.25
6. Step 6: Final answer
   x = 98,351.06