Finding the Fourth Proportional to 12,288.38, 18,432.63 and 3,054.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.38 : 18,432.63 = 3,054.38 : x
2. Step 2: Convert to fraction form
   12,288.38/18,432.63 = 3,054.38/x
3. Step 3: Cross multiply
   12,288.38x = 18,432.63 × 3,054.38
4. Step 4: Simplify right side
   12,288.38x = 56,300,164.26
5. Step 5: Solve for x
   x = 56,300,164.26/12,288.38
6. Step 6: Final answer
   x = 4,581.58