Finding the Fourth Proportional to 12,554.25, 18,824.54 and 8,111.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,554.25 : 18,824.54 = 8,111.30 : x
2. Step 2: Convert to fraction form
   12,554.25/18,824.54 = 8,111.30/x
3. Step 3: Cross multiply
   12,554.25x = 18,824.54 × 8,111.30
4. Step 4: Simplify right side
   12,554.25x = 152,691,356.62
5. Step 5: Solve for x
   x = 152,691,356.62/12,554.25
6. Step 6: Final answer
   x = 12,162.53