Finding the Fourth Proportional to 12,151.10, 18,227.28 and 3,386.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151.10 : 18,227.28 = 3,386.54 : x
2. Step 2: Convert to fraction form
   12,151.10/18,227.28 = 3,386.54/x
3. Step 3: Cross multiply
   12,151.10x = 18,227.28 × 3,386.54
4. Step 4: Simplify right side
   12,151.10x = 61,727,412.81
5. Step 5: Solve for x
   x = 61,727,412.81/12,151.10
6. Step 6: Final answer
   x = 5,079.99