Finding the Fourth Proportional to 12,040.47, 16,615.20 and 7,003.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.47 : 16,615.20 = 7,003.89 : x
2. Step 2: Convert to fraction form
   12,040.47/16,615.20 = 7,003.89/x
3. Step 3: Cross multiply
   12,040.47x = 16,615.20 × 7,003.89
4. Step 4: Simplify right side
   12,040.47x = 116,371,033.13
5. Step 5: Solve for x
   x = 116,371,033.13/12,040.47
6. Step 6: Final answer
   x = 9,664.99