Finding the Fourth Proportional to 150,136.96, 224,756.72 and 90,793.12

Step by Step Solution

1. Step 1: Write the proportion equation
   150,136.96 : 224,756.72 = 90,793.12 : x
2. Step 2: Convert to fraction form
   150,136.96/224,756.72 = 90,793.12/x
3. Step 3: Cross multiply
   150,136.96x = 224,756.72 × 90,793.12
4. Step 4: Simplify right side
   150,136.96x = 20,406,363,849.77
5. Step 5: Solve for x
   x = 20,406,363,849.77/150,136.96
6. Step 6: Final answer
   x = 135,918.32