Finding the Fourth Proportional to 131,383.50, 181,309.23 and 71,767.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,383.50 : 181,309.23 = 71,767.50 : x
2. Step 2: Convert to fraction form
   131,383.50/181,309.23 = 71,767.50/x
3. Step 3: Cross multiply
   131,383.50x = 181,309.23 × 71,767.50
4. Step 4: Simplify right side
   131,383.50x = 13,012,110,164.03
5. Step 5: Solve for x
   x = 13,012,110,164.03/131,383.50
6. Step 6: Final answer
   x = 99,039.15