Finding the Fourth Proportional to 16,552.31, 22,838.54 and 12,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,552.31 : 22,838.54 = 12,078.50 : x
2. Step 2: Convert to fraction form
   16,552.31/22,838.54 = 12,078.50/x
3. Step 3: Cross multiply
   16,552.31x = 22,838.54 × 12,078.50
4. Step 4: Simplify right side
   16,552.31x = 275,855,130.80
5. Step 5: Solve for x
   x = 275,855,130.80/16,552.31
6. Step 6: Final answer
   x = 16,665.66