Finding the Fourth Proportional to 9,136.72, 13,624.84 and 9,053.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.72 : 13,624.84 = 9,053.56 : x
2. Step 2: Convert to fraction form
   9,136.72/13,624.84 = 9,053.56/x
3. Step 3: Cross multiply
   9,136.72x = 13,624.84 × 9,053.56
4. Step 4: Simplify right side
   9,136.72x = 123,353,306.43
5. Step 5: Solve for x
   x = 123,353,306.43/9,136.72
6. Step 6: Final answer
   x = 13,500.83