Finding the Fourth Proportional to 11,445.89, 17,144.15 and 7,727.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,445.89 : 17,144.15 = 7,727.67 : x
2. Step 2: Convert to fraction form
   11,445.89/17,144.15 = 7,727.67/x
3. Step 3: Cross multiply
   11,445.89x = 17,144.15 × 7,727.67
4. Step 4: Simplify right side
   11,445.89x = 132,484,294.99
5. Step 5: Solve for x
   x = 132,484,294.99/11,445.89
6. Step 6: Final answer
   x = 11,574.84