Finding the Fourth Proportional to 12,025.71, 18,042.48 and 5,009.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,025.71 : 18,042.48 = 5,009.09 : x
2. Step 2: Convert to fraction form
   12,025.71/18,042.48 = 5,009.09/x
3. Step 3: Cross multiply
   12,025.71x = 18,042.48 × 5,009.09
4. Step 4: Simplify right side
   12,025.71x = 90,376,315.93
5. Step 5: Solve for x
   x = 90,376,315.93/12,025.71
6. Step 6: Final answer
   x = 7,515.26