Finding the Fourth Proportional to 12,150.54, 16,766.80 and 7,114.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.54 : 16,766.80 = 7,114.10 : x
2. Step 2: Convert to fraction form
   12,150.54/16,766.80 = 7,114.10/x
3. Step 3: Cross multiply
   12,150.54x = 16,766.80 × 7,114.10
4. Step 4: Simplify right side
   12,150.54x = 119,280,590.26
5. Step 5: Solve for x
   x = 119,280,590.26/12,150.54
6. Step 6: Final answer
   x = 9,816.90