Finding the Fourth Proportional to 12,039, 18,051.30 and 5,010.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,039 : 18,051.30 = 5,010.54 : x
2. Step 2: Convert to fraction form
   12,039/18,051.30 = 5,010.54/x
3. Step 3: Cross multiply
   12,039x = 18,051.30 × 5,010.54
4. Step 4: Simplify right side
   12,039x = 90,446,760.70
5. Step 5: Solve for x
   x = 90,446,760.70/12,039
6. Step 6: Final answer
   x = 7,512.81