Finding the Fourth Proportional to 13,811.54, 19,061.25 and 8,509.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,811.54 : 19,061.25 = 8,509.46 : x
2. Step 2: Convert to fraction form
   13,811.54/19,061.25 = 8,509.46/x
3. Step 3: Cross multiply
   13,811.54x = 19,061.25 × 8,509.46
4. Step 4: Simplify right side
   13,811.54x = 162,200,944.43
5. Step 5: Solve for x
   x = 162,200,944.43/13,811.54
6. Step 6: Final answer
   x = 11,743.87