Finding the Fourth Proportional to 12,260, 18,390.27 and 3,026

Step by Step Solution

1. Step 1: Write the proportion equation
   12,260 : 18,390.27 = 3,026 : x
2. Step 2: Convert to fraction form
   12,260/18,390.27 = 3,026/x
3. Step 3: Cross multiply
   12,260x = 18,390.27 × 3,026
4. Step 4: Simplify right side
   12,260x = 55,648,957.02
5. Step 5: Solve for x
   x = 55,648,957.02/12,260
6. Step 6: Final answer
   x = 4,539.07