Finding the Fourth Proportional to 115,287.50, 159,206.67 and 108,997.37

Step by Step Solution

1. Step 1: Write the proportion equation
   115,287.50 : 159,206.67 = 108,997.37 : x
2. Step 2: Convert to fraction form
   115,287.50/159,206.67 = 108,997.37/x
3. Step 3: Cross multiply
   115,287.50x = 159,206.67 × 108,997.37
4. Step 4: Simplify right side
   115,287.50x = 17,353,107,520.42
5. Step 5: Solve for x
   x = 17,353,107,520.42/115,287.50
6. Step 6: Final answer
   x = 150,520.29