Finding the Fourth Proportional to 107,687.67, 161,136.50 and 89,874.33

Step by Step Solution

1. Step 1: Write the proportion equation
   107,687.67 : 161,136.50 = 89,874.33 : x
2. Step 2: Convert to fraction form
   107,687.67/161,136.50 = 89,874.33/x
3. Step 3: Cross multiply
   107,687.67x = 161,136.50 × 89,874.33
4. Step 4: Simplify right side
   107,687.67x = 14,482,034,526.67
5. Step 5: Solve for x
   x = 14,482,034,526.67/107,687.67
6. Step 6: Final answer
   x = 134,481.83