Finding the Fourth Proportional to 95,991.67, 132,504.83 and 72,187.09

Step by Step Solution

1. Step 1: Write the proportion equation
   95,991.67 : 132,504.83 = 72,187.09 : x
2. Step 2: Convert to fraction form
   95,991.67/132,504.83 = 72,187.09/x
3. Step 3: Cross multiply
   95,991.67x = 132,504.83 × 72,187.09
4. Step 4: Simplify right side
   95,991.67x = 9,565,137,667.15
5. Step 5: Solve for x
   x = 9,565,137,667.15/95,991.67
6. Step 6: Final answer
   x = 99,645.50