Finding the Fourth Proportional to 13,492.69, 20,244.89 and 7,245.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,492.69 : 20,244.89 = 7,245.42 : x
2. Step 2: Convert to fraction form
   13,492.69/20,244.89 = 7,245.42/x
3. Step 3: Cross multiply
   13,492.69x = 20,244.89 × 7,245.42
4. Step 4: Simplify right side
   13,492.69x = 146,682,632.34
5. Step 5: Solve for x
   x = 146,682,632.34/13,492.69
6. Step 6: Final answer
   x = 10,871.26