Finding the Fourth Proportional to 131,879.79, 181,993.86 and 71,451.94

Step by Step Solution

1. Step 1: Write the proportion equation
   131,879.79 : 181,993.86 = 71,451.94 : x
2. Step 2: Convert to fraction form
   131,879.79/181,993.86 = 71,451.94/x
3. Step 3: Cross multiply
   131,879.79x = 181,993.86 × 71,451.94
4. Step 4: Simplify right side
   131,879.79x = 13,003,814,365.09
5. Step 5: Solve for x
   x = 13,003,814,365.09/131,879.79
6. Step 6: Final answer
   x = 98,603.54