Finding the Fourth Proportional to 12,089.02, 18,128.69 and 3,766.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,089.02 : 18,128.69 = 3,766.30 : x
2. Step 2: Convert to fraction form
   12,089.02/18,128.69 = 3,766.30/x
3. Step 3: Cross multiply
   12,089.02x = 18,128.69 × 3,766.30
4. Step 4: Simplify right side
   12,089.02x = 68,278,085.15
5. Step 5: Solve for x
   x = 68,278,085.15/12,089.02
6. Step 6: Final answer
   x = 5,647.94