Finding the Fourth Proportional to 215,588.00, 323,136.77 and 131,162.07

Step by Step Solution

1. Step 1: Write the proportion equation
   215,588.00 : 323,136.77 = 131,162.07 : x
2. Step 2: Convert to fraction form
   215,588.00/323,136.77 = 131,162.07/x
3. Step 3: Cross multiply
   215,588.00x = 323,136.77 × 131,162.07
4. Step 4: Simplify right side
   215,588.00x = 42,383,286,990.50
5. Step 5: Solve for x
   x = 42,383,286,990.50/215,588.00
6. Step 6: Final answer
   x = 196,593.91