Finding the Fourth Proportional to 36,882.72, 55,289.52 and 13,491

Step by Step Solution

1. Step 1: Write the proportion equation
   36,882.72 : 55,289.52 = 13,491 : x
2. Step 2: Convert to fraction form
   36,882.72/55,289.52 = 13,491/x
3. Step 3: Cross multiply
   36,882.72x = 55,289.52 × 13,491
4. Step 4: Simplify right side
   36,882.72x = 745,910,914.32
5. Step 5: Solve for x
   x = 745,910,914.32/36,882.72
6. Step 6: Final answer
   x = 20,223.86